wlan: Add WLAN HAL support for VOWIFIMODE driver command

Add WLAN HAL support for sending VOWIFIMODE command in the
case when connected to 2.4GHz band.

Change-Id: I29c904d4d57837d613ee13d0e4d8fbab001c0ccd
CRs-Fixed: 2203713
diff --git a/riva/inc/wlan_hal_msg.h b/riva/inc/wlan_hal_msg.h
index b37e63c..e245f0e 100644
--- a/riva/inc/wlan_hal_msg.h
+++ b/riva/inc/wlan_hal_msg.h
@@ -628,6 +628,8 @@
    WLAN_HAL_FW_GET_ARP_STATS_REQ             = 356,
    WLAN_HAL_FW_GET_ARP_STATS_RSP             = 357,
 
+   WLAN_HAL_VOWIFI_IND                       = 360,
+
    WLAN_HAL_MSG_MAX = WLAN_HAL_MSG_TYPE_MAX_ENUM_SIZE
 }tHalHostMsgType;
 
@@ -8187,6 +8189,21 @@
    tHalAllowedActionFrames allowedActionFrames;
 }tHalAllowedActionFramesReqInd, *tpHalAllowedActionFramesReqInd;
 
+/*----------------------------------------------------------------
+       WLAN_HAL_VOWIFI_IND
+-----------------------------------------------------------------*/
+typedef PACKED_PRE struct PACKED_POST
+{
+     /* 0 implies VoWifi call ended, 1 implies VoWifi call started */
+     tANI_U8 enable;
+} tHalVoWiFiIndParams, *tpHalVoWiFiIndParams;
+
+typedef PACKED_PRE struct PACKED_POST
+{
+     tHalMsgHeader header;
+     tHalVoWiFiIndParams voWiFiIndParams;
+} tHalVoWiFiInd, * tpHalVoWiFiInd;
+
 /*--------------------------------------------------------------------------
 * WLAN_HAL_LL_SET_STATS_REQ
 *---------------------------------------------------------------------------*/