spi_master:fix error when use spi_bus_add_device more than 3 device

update gpio_sig at `spics_out` array in each spi_periph.c of chips later than s2
then `spi_bus_add_device` can correctly distribute gpio_signals for cs_signal

Closes https://github.com/espressif/esp-idf/issues/8876

components/soc/esp32s2/include/soc/Kconfig.soc_caps.in

@@ -567,6 +567,10 @@ config SOC_SPI_DMA_CHAN_NUM
     int
     default 3
 
+config SOC_SPI_MAX_CS_NUM
+    int
+    default 6
+
 config SOC_SPI_MAXIMUM_BUFFER_SIZE
     int
     default 72

components/soc/esp32s2/include/soc/soc_caps.h

@@ -253,6 +253,7 @@
 #define SOC_SPI_PERIPH_NUM                  3
 #define SOC_SPI_DMA_CHAN_NUM                3
 #define SOC_SPI_PERIPH_CS_NUM(i)            (((i)==0)? 2: (((i)==1)? 6: 3))
+#define SOC_SPI_MAX_CS_NUM                  6
 
 #define SOC_SPI_MAXIMUM_BUFFER_SIZE         72
 #define SOC_SPI_MAX_PRE_DIVIDER             8192

components/soc/esp32s2/spi_periph.c

@@ -1,16 +1,8 @@
-// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include "soc/spi_periph.h"
 #include "stddef.h"
@@ -62,7 +54,7 @@ const spi_signal_conn_t spi_periph_signal[SOC_SPI_PERIPH_NUM] = {
         .spid5_in = FSPIIO5_IN_IDX,
         .spid6_in = FSPIIO6_IN_IDX,
         .spid7_in = FSPIIO7_IN_IDX,
-        .spics_out = {FSPICS0_OUT_IDX, FSPICS1_OUT_IDX, FSPICS2_OUT_IDX},
+        .spics_out = {FSPICS0_OUT_IDX, FSPICS1_OUT_IDX, FSPICS2_OUT_IDX, FSPICS3_OUT_IDX, FSPICS4_OUT_IDX, FSPICS5_OUT_IDX},
         .spics_in = FSPICS0_IN_IDX,
         .spiclk_iomux_pin = FSPI_IOMUX_PIN_NUM_CLK,
         .spid_iomux_pin = FSPI_IOMUX_PIN_NUM_MOSI,