Split parts of bits/socket.h to bits/sockettypes.h

[David Miller]

From: "Joseph S. Myers" <joseph@codesourcery.com>
Date: Fri, 9 Mar 2012 17:11:33 +0000 (UTC)

> 2012-03-09  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* sysdeps/unix/sysv/linux/bits/socket_type.h: New file.
> 	* sysdeps/unix/sysv/linux/sparc/bits/socket_type.h: Likewise.
> 	* sysdeps/unix/sysv/linux/bits/socket.h: Get enum __socket_type
> 	from <bits/socket_type.h>.
> 	(enum __socket_type): Don't define here.
> 	* sysdeps/unix/sysv/linux/sparc/bits/socket.h: Remove.
> 	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
> 	bits/socket_type.h.

Sparc looks good, please check this in.