Merge branch 'feature/add_freq_offset_var_for_RF_test' into 'master'

feat(wifi): add frequency offset var for RF test

See merge request sdk/ESP8266_RTOS_SDK!1482

Author: donghengqaz

components/esp8266/include/esp_wifi_types.h

@@ -156,6 +156,7 @@ typedef struct {
     uint8_t primary;                      /**< channel of AP */
     wifi_second_chan_t second;            /**< secondary channel of AP */
     int8_t  rssi;                         /**< signal strength of AP */
+    int16_t freq_offset;                  /**< frequency offset of AP */
     wifi_auth_mode_t authmode;            /**< authmode of AP */
     wifi_cipher_type_t pairwise_cipher;   /**< pairwise cipher of AP */
     wifi_cipher_type_t group_cipher;      /**< group cipher of AP */

components/esp8266/lib/VERSION

@@ -1,7 +1,7 @@
 gwen:
     core:       3c69aa1
-    net80211:   3c69aa1
-    pp:         3c69aa1
+    net80211:   a8994bb
+    pp:         a8994bb
     espnow:     3c69aa1
     wps:        3c69aa1
     wpa2:       3c69aa1