qcacld-3.0: Request high bus bandwidth for monitor mode

Currently for monitor mode there is no bandwidth vote and
as a result voting level is none. So request high bus bandwidth
vote level for monitor mode.

Change-Id: I3efb755c80dadc07b5f672c18d9bae862eac378f
CRs-Fixed: 2643405

core/hdd/src/wlan_hdd_main.c

@@ -2593,6 +2593,10 @@ static int __hdd_mon_open(struct net_device *dev)
 	if (!ret)
 		ret = hdd_enable_monitor_mode(dev);
 
+	if (!ret)
+		pld_request_bus_bandwidth(hdd_ctx->parent_dev,
+					  PLD_BUS_WIDTH_VERY_HIGH);
+
 	return ret;
 }