net: unix -- Add missing module.h inclusion

Otherwise getting

| net/unix/diag.c:312:16: error: expected declaration specifiers or ‘...’ before string constant | net/unix/diag.c:313:1: error: expected declaration specifiers or ‘...’ before string constant

---
 net/unix/diag.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

index a5c4aab..91d5782 100644
@@ -3,6 +3,7 @@
 #include <linux/sock_diag.h>
 #include <linux/unix_diag.h>
 #include <linux/skbuff.h>
+#include <linux/module.h>
 #include <net/netlink.h>
 #include <net/af_unix.h>
 #include <net/tcp_states.h>

1.7.7.4

From: Cyrill Gorcunov <[email protected]>
Date: Tue, 20 Dec 2011 18:33:03 +0400

Applied.