powerpc: mark xer clobbered in csum_add()

addc uses carry so xer is clobbered in csum_add()

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
This commit is contained in:
Christophe Leroy 2015-09-22 16:34:21 +02:00 • committed by Scott Wood
commit 11dfbf588a