NimBLE: Add Host based privacy (RPA) feature support

- This feature removes dependency on controller to use privacy (RPA)

components/bt/CMakeLists.txt

@@ -480,6 +480,7 @@ if(CONFIG_BT_ENABLED)
                     "host/nimble/nimble/nimble/host/src/ble_hs_adv.c"
                     "host/nimble/nimble/nimble/host/src/ble_hs_hci.c"
                     "host/nimble/nimble/nimble/host/src/ble_hs_hci_util.c"
+                    "host/nimble/nimble/nimble/host/src/ble_hs_resolv.c"
                     "host/nimble/nimble/nimble/host/store/ram/src/ble_store_ram.c"
                     "host/nimble/nimble/nimble/host/store/config/src/ble_store_config.c"
                     "host/nimble/nimble/nimble/host/store/config/src/ble_store_nvs.c"

components/bt/host/nimble/Kconfig.in

@@ -257,6 +257,15 @@ config BT_NIMBLE_HS_FLOW_CTRL_TX_ON_DISCONNECT
         Enable this option to send number-of-completed-packets event to
         controller after disconnection
 
+config BT_NIMBLE_RPA_TIMEOUT
+    int "RPA timeout in seconds"
+    range 1 41400
+    depends on BT_NIMBLE_ENABLED
+    default 900
+    help
+        Time interval between RPA address change. This is applicable in case of
+        Host based RPA
+
 menuconfig BT_NIMBLE_MESH
     bool "Enable BLE mesh functionality"
     select BT_NIMBLE_SM_SC

components/bt/host/nimble/port/include/esp_nimble_cfg.h

@@ -543,8 +543,12 @@
 #define MYNEWT_VAL_BLE_MONITOR_UART_DEV ("uart0")
 #endif
 
+#ifndef MYNEWT_VAL_BLE_HOST_BASED_PRIVACY
+#define MYNEWT_VAL_BLE_HOST_BASED_PRIVACY (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_RPA_TIMEOUT
-#define MYNEWT_VAL_BLE_RPA_TIMEOUT (300)
+#define MYNEWT_VAL_BLE_RPA_TIMEOUT (CONFIG_BT_NIMBLE_RPA_TIMEOUT)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_SM_BONDING