qcacld-3.0: Disable LRO feature when linux kernel version < 4.4

Currently kernel LRO API is only provided in version 4.4. There will
be compilation error if kernel version < 4.4. Add fix to disable
LRO feature when linux kernel version < 4.4.

Change-Id: I69198e55bb3c4ee7c5844e2b7b55e12cb8075d7c
CRs-Fixed: 1112463

Kbuild

@@ -208,9 +208,11 @@ endif
 
 	# Flag to enable LRO (Large Receive Offload)
 	ifeq ($(CONFIG_INET_LRO), y)
-		CONFIG_WLAN_LRO := y
-	else
-		CONFIG_WLAN_LRO := n
+		ifeq ($(VERSION), 4)
+			CONFIG_WLAN_LRO := y
+		else
+			CONFIG_WLAN_LRO := n
+		endif
 	endif
 endif