feat(wifi): Add country code API

internal: a6313782

VERSION

@@ -1,14 +1,14 @@
 gwen:
-    crypto:     52dbf63
+    crypto:     9ec59b5
-    espnow:     52dbf63
+    espnow:     9ec59b5
-    main:       02199b2
+    main:       9ec59b5
-    minic:      52dbf63
+    minic:      9ec59b5
-    net80211:   02199b2
+    net80211:   9ec59b5
-    pp:         94fab61
+    pp:         9ec59b5
-    pwm:        52dbf63
+    pwm:        9ec59b5
-    smartconfig:016fc33
+    smartconfig:9ec59b5
-    wpa:        bac4751
+    wpa:        9ec59b5
-    wps:        52dbf63
+    wps:        9ec59b5
 
 gitlab:
     espconn:    3a998034

include/espressif/esp_wifi.h

@@ -65,6 +65,18 @@ typedef enum {
     AUTH_MAX
 } AUTH_MODE;
 
+typedef enum {
+    WIFI_COUNTRY_POLICY_AUTO,   /**< Country policy is auto, use the country info of AP to which the station is connected */
+    WIFI_COUNTRY_POLICY_MANUAL, /**< Country policy is manual, always use the configured country info */
+} WIFI_COUNTRY_POLICY;
+
+typedef struct {
+    char cc[3];               /**< country code string */
+    uint8_t schan;            /**< start channel */
+    uint8_t nchan;            /**< total channel number */
+    uint8_t policy;           /**< country policy */
+} wifi_country_t;
+
 /**
   * @brief  Get the current operating mode of the WiFi.
   *