qcacld-3.0: Change dot11p_mode to enumerated type

dot11p_mode is currently represented with a uint8_t type, despite an
appropriate enumerated type being available. Change the field's type to
the more restrictive 'enum dot11p_mode' instead of uint8_t.

Change-Id: I847ce0901297b0a3e4312e8ce4124a886320f174
CRs-Fixed: 2335575

components/mlme/dispatcher/inc/wlan_mlme_public_struct.h

@@ -841,7 +841,7 @@ struct wlan_mlme_sta_cfg {
 	uint32_t tgt_gtx_usr_cfg;
 	uint32_t pmkid_modes;
 	uint32_t wait_cnf_timeout;
-	uint8_t dot11p_mode;
+	enum dot11p_mode dot11p_mode;
 	uint8_t fils_max_chan_guard_time;
 	uint8_t current_rssi;
 	bool ignore_peer_erp_info;

components/mlme/dispatcher/inc/wlan_mlme_ucfg_api.h

@@ -616,13 +616,13 @@ ucfg_mlme_set_pmkid_modes(struct wlan_objmgr_psoc *psoc,
 /**
  * ucfg_mlme_get_dot11p_mode() - Get the setting about 802.11p mode
  * @psoc: pointer to psoc object
- * @val:  Pointer to the value which will be filled for the caller
+ * @out_mode:  Pointer to the mode which will be filled for the caller
  *
  * Return: QDF Status
  */
 QDF_STATUS
 ucfg_mlme_get_dot11p_mode(struct wlan_objmgr_psoc *psoc,
-			  uint8_t *val);
+			  enum dot11p_mode *out_mode);
 
 /**
  * ucfg_mlme_get_go_cts2self_for_sta() - Stop NOA and start using cts2self