Assembly in at91_lpddr_poweroff has r0 in the clobber list but uses r6.
Reported-by: NBen Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>