qcacld-3.0: Do not tie LRO support to kernel version

Remove LRO dependency kernel version, instead make it only dependent
kernel config CONFIG_INET_LRO

Change-Id: I2f3503149026102803b347e1a674bd3ab747aacf
CRs-Fixed: 2042812

Kbuild

@@ -209,11 +209,9 @@ endif
 
 	# Flag to enable LRO (Large Receive Offload)
 	ifeq ($(CONFIG_INET_LRO), y)
-		ifeq ($(VERSION), 4)
-			CONFIG_WLAN_LRO := y
-		else
-			CONFIG_WLAN_LRO := n
-		endif
+		CONFIG_WLAN_LRO := y
+	else
+		CONFIG_WLAN_LRO := n
 	endif
 endif