[TCP]: Move the tcp sock states to net/tcp_states.h

Lots of places just needs the states, not even linux/tcp.h, where this
enum was, needs it.

This speeds up development of the refactorings as less sources are
rebuilt when things get moved from net/tcp.h.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipx/af_ipx.c

@@ -44,7 +44,6 @@
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/string.h>
-#include <linux/tcp.h>
 #include <linux/types.h>
 #include <linux/termios.h>
 
@@ -52,6 +51,7 @@
 #include <net/p8022.h>
 #include <net/psnap.h>
 #include <net/sock.h>
+#include <net/tcp_states.h>
 
 #include <asm/uaccess.h>
 

net/ipx/ipx_proc.c

@@ -10,7 +10,7 @@
 #include <linux/proc_fs.h>
 #include <linux/spinlock.h>
 #include <linux/seq_file.h>
-#include <linux/tcp.h>
+#include <net/tcp_states.h>
 #include <net/ipx.h>
 
 static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos)