[PATCH] ppc32: use correct register names in arch/ppc/kernel/relocate_kernel.S

CONFIG_KEXEC=y doesnt work:

arch/ppc/kernel/relocate_kernel.S:37: Error: unsupported relocation against SRR1
arch/ppc/kernel/relocate_kernel.S:39: Error: unsupported relocation against SRR0

Signed-off-by: Olaf Hering <olh@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>