This patch just consolidates the last of the (what should have been)
compat_sigval_ts.  It also fixes S390 that had a sigval_t in its struct
compat_siginfo.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>