qcacld-3.0: preferred_rx_streams to reflect correct NSS value

preferred_rx_streams to reflect the NSS value with which association to the
AP happened in STA mode.

Change-Id: Ia2ecfb7ba055c3644410b0ff908812f0f94ba4c7
CRs-Fixed: 2077040

core/wma/src/wma_scan_roam.c

@@ -3003,7 +3003,7 @@ void wma_set_channel(tp_wma_handle wma, tpSwitchChannelParams params)
 	if (!QDF_IS_STATUS_SUCCESS(status))
 		WMA_LOGE("policy_mgr_get_current_hw_mode failed");
 
-	if ((params->nss == 2) && !hw_mode.dbs_cap) {
+	if (params->nss == 2) {
 		req.preferred_rx_streams = 2;
 		req.preferred_tx_streams = 2;
 	} else {