ppc64: actually add sys_splice() to the system call table

(We'd only added the number, which meant that actually trying
to use splice just went off into la-la-land)
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/powerpc/kernel/systbl.S

@@ -322,3 +322,4 @@ SYSCALL(spu_create)
 COMPAT_SYS(pselect6)
 COMPAT_SYS(ppoll)
 SYSCALL(unshare)
+SYSCALL(splice)