When a pseries+pmac kernel is built, the rtas stop-self token wasnt being
initialised.  Since doing this will safely fail on pmac, remove the
!CONFIG_PPC_PMAC restriction
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>