Merge branch 'icc-ignore-return-val' into icc-next

Today remove callbacks of platform devices return an int. This is unfortunate
because the device core ignores the return value and so the platform code only
emits a warning (and still removes the device).

The longterm quest is to make these remove callbacks return void instead.
This series is a preparation for that, with the goal to make the remove
callbacks obviously always return 0. This way when the prototype of
these functions is changed to return void, the change is straight
forward and easy to review.

Link: https://lore.kernel.org/r/20220718121409.171773-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Georgi Djakov <djakov@kernel.org>