ipv4: fix checkpatch errors

Fix checkpatch errors of the following type:
	* ERROR: "foo * bar" should be "foo *bar"
	* ERROR: "(foo*)" should be "(foo *)"

Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index b5a1849..2d0f99b 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -185,7 +185,7 @@
 	return tot;
 }
 
-static struct ip_tunnel * ipip_tunnel_lookup(struct net *net,
+static struct ip_tunnel *ipip_tunnel_lookup(struct net *net,
 		__be32 remote, __be32 local)
 {
 	unsigned int h0 = HASH(remote);
@@ -260,7 +260,7 @@
 	rcu_assign_pointer(*tp, t);
 }
 
-static struct ip_tunnel * ipip_tunnel_locate(struct net *net,
+static struct ip_tunnel *ipip_tunnel_locate(struct net *net,
 		struct ip_tunnel_parm *parms, int create)
 {
 	__be32 remote = parms->iph.daddr;