ipv4: make default for INET_LRO consistent with help text

Commit e81963b1 ("ipv4: Make INET_LRO a bool instead of tristate.")
changed this config from tristate to bool.  Add default so that it is
consistent with the help text.

Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 9d26a3d..5b919f7 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -408,7 +408,7 @@
 
 config INET_LRO
 	bool "Large Receive Offload (ipv4/tcp)"
-
+	default y
 	---help---
 	  Support for Large Receive Offload (ipv4/tcp).