qcacld-3.0: Add support for Tx transmit power level feature bit

This is a qcacld-2.0 to qcacld-3.0 propagation.

Set Tx transmit power level feature bit in get_supported_features.
Framework needs to distinguish the driver supporting this feature
v/s other vendors not supporting.

Change-Id: I7ab412c6f89ea2910431bb99072c2d6f9d20dc4a
CRs-Fixed: 992365

core/hdd/src/wlan_hdd_cfg80211.c

@@ -1907,6 +1907,7 @@ __wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
 	fset |= WIFI_FEATURE_AP_STA;
 #endif
 	fset |= WIFI_FEATURE_RSSI_MONITOR;
+	fset |= WIFI_FEATURE_TX_TRANSMIT_POWER;
 
 	if (hdd_link_layer_stats_supported())
 		fset |= WIFI_FEATURE_LINK_LAYER_STATS;

core/hdd/src/wlan_hdd_cfg80211.h

@@ -2245,6 +2245,9 @@ enum qca_wlan_vendor_attr_sap_conditional_chan_switch {
 #define WIFI_FEATURE_LOGGER             0x20000  /* WiFi Logger */
 #define WIFI_FEATURE_HAL_EPNO           0x40000  /* WiFi PNO enhanced */
 #define WIFI_FEATURE_RSSI_MONITOR       0x80000  /* RSSI Monitor */
+#define WIFI_FEATURE_MKEEP_ALIVE        0x100000  /* WiFi mkeep_alive */
+#define WIFI_FEATURE_CONFIG_NDO         0x200000  /* ND offload configure */
+#define WIFI_FEATURE_TX_TRANSMIT_POWER  0x400000  /* Tx transmit power levels */
 
 /**
  * enum wifi_logger_supported_features - values for supported logger features