component/bt: add clear rand address API

components/bt/bluedroid/api/include/api/esp_gap_ble_api.h

@@ -820,10 +820,8 @@ esp_err_t esp_ble_gap_update_conn_params(esp_ble_conn_update_params_t *params);
  */
 esp_err_t esp_ble_gap_set_pkt_data_len(esp_bd_addr_t remote_device, uint16_t tx_data_length);
 
-
-
 /**
- * @brief           This function set the random address for the application
+ * @brief           This function sets the random address for the application
  *
  * @param[in]       rand_addr: the random address which should be setting
  *
@@ -834,6 +832,16 @@ esp_err_t esp_ble_gap_set_pkt_data_len(esp_bd_addr_t remote_device, uint16_t tx_
  */
 esp_err_t esp_ble_gap_set_rand_addr(esp_bd_addr_t rand_addr);
 
+/**
+ * @brief           This function clears the random address for the application
+ *
+ * @return
+ *                  - ESP_OK : success
+ *                  - other  : failed
+ *
+ */
+esp_err_t esp_ble_gap_clear_rand_addr(void);
+
 
 
 /**