Merge tag 'psy-at91-poweroff-immutable-for-v4.20-signed' into psy-next

Immutable branch for mach-at91 and power-supply for v4.20

Immutable branch between mach-at91 and power-supply for driver
changes in at91-poweroff.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>