qcacld-3.0: Enable the scatter-gather feature

Enable the scatter-gather feature for wlan interface, if the wlan
interface is binding to the bridge, which might enable SG & TSO feature
for the bridge and improve the TCP TX throughput much better.

Change-Id: I26101756266878f9f41c5dc2d0b5dad189b44ee1
CRs-Fixed: 2246512

Kbuild

@@ -2159,6 +2159,10 @@ ifeq ($(CONFIG_ARCH_SDX20), y)
 cppflags-y += -DSYNC_IPA_READY
 endif
 
+ifeq ($(CONFIG_ARCH_SDXPOORWILLS), y)
+cppflags-y += -DFEATURE_SG
+endif
+
 #Enable wbuff
 cppflags-$(CONFIG_WLAN_WBUFF) += -DWLAN_FEATURE_WBUFF