qcacld-3.0: Enable scatter gather feature for Rome

Enable the scatter gather feature for Rome to improve
the TCP TX throughput.

Change-Id: I650b91e36b8ad1c730c9214c0e3613f32dd3ad76
CRs-Fixed: 2741133

configs/qca6174_defconfig

@@ -747,3 +747,5 @@ CONFIG_SAP_DHCP_FW_IND := y
 #Enable FW Offload
 CONFIG_WLAN_FW_OFFLOAD := y
 
+CONFIG_FEATURE_SG := y
+