Merge branch 'bugfix/coex_fix_wifi_scan_and_connect_bugs_v4.0' into 'release/v4.0'

esp_wifi: fix WiFi scan and connect bugs when coexist with Bluetooth

See merge request espressif/esp-idf!6939

components/esp32/cpu_start.c

@@ -423,6 +423,7 @@ void start_cpu0_default(void)
 
 #if CONFIG_ESP32_WIFI_SW_COEXIST_ENABLE
     esp_coex_adapter_register(&g_coex_adapter_funcs);
+    coex_pre_init();
 #endif
 
     bootloader_flash_update_id();

components/esp_wifi/include/esp_coexist_internal.h

@@ -31,6 +31,15 @@ typedef enum {
 
 typedef void (* coex_func_cb_t)(uint32_t event, int sched_cnt);
 
+/**
+ * @brief Pre-Init software coexist
+ *        extern function for internal use.
+ *
+ * @return Init ok or failed.
+ */
+esp_err_t coex_pre_init(void);
+
+
 /**
  * @brief Init software coexist
  *        extern function for internal use.