qcacmn: add an ini field to control rx frame pending check

Add a ini control field to control rx frame pending check
logic in WoW case. In some cases, power consumption is more
important than rx frame ping loss, so add a control flag

Change-Id: I8c4d3725edddb82a0f06dc70c22a8dd5243209f2
CRs-Fixed: 2806786

dp/inc/cdp_txrx_cmn.h

@@ -2664,7 +2664,10 @@ cdp_rx_get_pending(ol_txrx_soc_handle soc)
 	    !soc->ol_ops->dp_rx_get_pending)
 		return 0;
 
-	return soc->ol_ops->dp_rx_get_pending(soc);
+	if (cdp_cfg_get(soc, cfg_dp_wow_check_rx_pending))
+		return soc->ol_ops->dp_rx_get_pending(soc);
+	else
+		return 0;
 }
 
 #ifdef QCA_SUPPORT_WDS_EXTENDED