ipv4: ip_output.c: Couple of typo fixes

s/readibility/readability/
s/insufficent/insufficient/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/ip_output.c

@@ -34,7 +34,7 @@
  *		Andi Kleen	: 	Replace ip_reply with ip_send_reply.
  *		Andi Kleen	:	Split fast and slow ip_build_xmit path
  *					for decreased register pressure on x86
- *					and more readibility.
+ *					and more readability.
  *		Marc Boucher	:	When call_out_firewall returns FW_QUEUE,
  *					silently drop skb instead of failing with -EPERM.
  *		Detlev Wengorz	:	Copy protocol for fragments.
@@ -262,7 +262,7 @@ static int ip_finish_output_gso(struct net *net, struct sock *sk,
 	 *    interface with a smaller MTU.
 	 *  - Arriving GRO skb (or GSO skb in a virtualized environment) that is
 	 *    bridged to a NETIF_F_TSO tunnel stacked over an interface with an
-	 *    insufficent MTU.
+	 *    insufficient MTU.
 	 */
 	features = netif_skb_features(skb);
 	BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_GSO_CB_OFFSET);