[PATCH] Add missing iucv related defines.

[Stefan Liebler]

Hi,

this patch adds the missing SOL_IUCV socket level definition
and socket options SO_IPRMDATA_MSG, SO_MSGLIMIT, SO_MSGSIZE
which can be used with get/setsockopt().
SCM_IUCV_TRGCLS is needed to send/receive ancillary data with 
send/recvmsg().

The defines are copied from kernel-source:
include/net/iucv/af_iucv.h
include/linux/socket.h

Okay to commit?

ChangeLog:

	* sysdeps/unix/sysv/linux/netiucv/iucv.h
	(SOL_IUCV, SO_IPRMDATA_MSG, SO_MSGLIMIT, SO_MSGSIZE,
	SCM_IUCV_TRGCLS): New define.
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