When I moved the exports into arch/ppc/lib/locks.c, I forgot to
include module.h, so it doesn't compile (with CONFIG_SMP +
CONFIG_SPINLOCK_DEBUG).  This patch fixes it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>