docs: update api-reference chapters for C3

Checked and updated the following chapters:
 * api-reference/network
 * api-reference/protocols
 * api-reference/provisioning
 * api-reference/storage
 * api-reference/peripherals/ds
 * api-reference/peripherals/hmac
 * api-reference/peripherals/secure_element

docs/en/api-reference/protocols/esp_spi_slave_protocol.rst

@@ -1,30 +1,31 @@
 ESP SPI Slave HD (Half Duplex) Mode Protocol
 ============================================
 
-.. note::
-    This protocol is only for ESP32-S2. The driver for other chip versions hasn't be developed
-    yet.
+.. only:: esp32
+
+    .. warning::
+        The driver for ESP32 hasn't been developed yet.
 
 .. _esp_spi_slave_caps:
 
 SPI Slave Capabilities of Espressif chips
 -----------------------------------------
 
-+--------------------+-------+----------+
-|                    | ESP32 | ESP32-S2 |
-+====================+=======+==========+
-| SPI Slave HD       | N     | Y (v2)   |
-+--------------------+-------+----------+
-| Tohost intr        |       | N        |
-+--------------------+-------+----------+
-| Frhost intr        |       | 2  \*    |
-+--------------------+-------+----------+
-| TX DMA             |       | Y        |
-+--------------------+-------+----------+
-| RX DMA             |       | Y        |
-+--------------------+-------+----------+
-| Shared   registers |       | 72       |
-+--------------------+-------+----------+
++--------------------+-------+----------+----------+
+|                    | ESP32 | ESP32-S2 | ESP32-C3 |
++====================+=======+==========+==========+
+| SPI Slave HD       | N     | Y (v2)   | Y (v2)   |
++--------------------+-------+----------+----------+
+| Tohost intr        |       | N        | N        |
++--------------------+-------+----------+----------+
+| Frhost intr        |       | 2  \*    | 2  \*    |
++--------------------+-------+----------+----------+
+| TX DMA             |       | Y        | Y        |
++--------------------+-------+----------+----------+
+| RX DMA             |       | Y        | Y        |
++--------------------+-------+----------+----------+
+| Shared   registers |       | 72       | 64       |
++--------------------+-------+----------+----------+
 
 Introduction
 ------------

docs/en/api-reference/protocols/esp_tls.rst

@@ -4,8 +4,8 @@ ESP-TLS
 Overview
 --------
 
-The ESP-TLS component provides a simplified API interface for accessing the commonly used TLS functionality. 
-It supports common scenarios like CA certification validation, SNI, ALPN negotiation, non-blocking connection among others. 
+The ESP-TLS component provides a simplified API interface for accessing the commonly used TLS functionality.
+It supports common scenarios like CA certification validation, SNI, ALPN negotiation, non-blocking connection among others.
 All the configuration can be specified in the ``esp_tls_cfg_t`` data structure. Once done, TLS communication can be conducted using the following APIs:
 
     * :cpp:func:`esp_tls_conn_new`: for opening a new TLS connection.
@@ -13,7 +13,7 @@ All the configuration can be specified in the ``esp_tls_cfg_t`` data structure.
     * :cpp:func:`esp_tls_conn_write`: for writing into the connection.
     * :cpp:func:`esp_tls_conn_delete`: for freeing up the connection.
 
-Any application layer protocol like HTTP1, HTTP2 etc can be executed on top of this layer.                       
+Any application layer protocol like HTTP1, HTTP2 etc can be executed on top of this layer.
 
 Application Example
 -------------------
@@ -137,20 +137,18 @@ SSL/TLS libraries and with all respective configurations set to default.
                 .use_secure_element = true,
             };
 
-.. only:: esp32s2
+.. only:: SOC_DIG_SIGN_SUPPORTED
 
     .. _digital-signature-with-esp-tls:
 
     Digital Signature with ESP-TLS
     ------------------------------
-    ESP-TLS provides support for using the Digital Signature (DS) with ESP32-S2.
+    ESP-TLS provides support for using the Digital Signature (DS) with {IDF_TARGET_NAME}.
     Use of the DS for TLS is supported only when ESP-TLS is used with mbedTLS (default stack) as its underlying SSL/TLS stack.
     For more details on Digital Signature, please refer to the :doc:`Digital Signature Documentation </api-reference/peripherals/ds>`. The technical details of Digital Signature such as
     how to calculate private key parameters can be found in *{IDF_TARGET_NAME} Technical Reference Manual* > *Digital Signature (DS)* [`PDF <{IDF_TARGET_TRM_EN_URL}#digsig>`__].
     The DS peripheral must be configured before it can be used to perform Digital Signature, see `Configure the DS Peripheral` in :doc:`Digital Signature </api-reference/peripherals/ds>`.
 
-    .. note:: As the DS peripheral support is only available for ESP32-S2, the idf-target should be set to ESP32-S2. See `Selecting the Target` in :doc:`build-system.</api-guides/build-system>`.
-
     The DS peripheral must be initlized with the required encrypted private key parameters (obtained when the DS peripheral is configured). ESP-TLS internally initializes the DS peripheral when
     provided with the required DS context (DS parameters). Please see the below code snippet for passing the DS context to esp-tls context. The DS context passed to the esp-tls context should not be freed till the TLS connection is deleted.