net: Convert net_ratelimit uses to net_<level>_ratelimited

Standardize the net core ratelimited logging functions.

Coalesce formats, align arguments.
Change a printk then vprintk sequence to use printf extension %pV.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/socket.c b/net/socket.c
index d3aaa4f..2a2898ce 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1234,8 +1234,7 @@
 	 */
 	sock = sock_alloc();
 	if (!sock) {
-		if (net_ratelimit())
-			printk(KERN_WARNING "socket: no more sockets\n");
+		net_warn_ratelimited("socket: no more sockets\n");
 		return -ENFILE;	/* Not exactly a match, but its the
 				   closest posix thing */
 	}