dm: video: bridge: don't fail to activate bridge if reset or sleep GPIO is missing

dm: video: bridge: don't fail to activate bridge if reset or sleep GPIO is missing

Both GPIOs are optional, so we shouldn't fail if any is missing.
Without this fix reset is not deasserted if sleep GPIO is missing.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
Gbp-Pq: Topic pinebook
Gbp-Pq: Name 0008-dm-video-bridge-don-t-fail-to-activate-bridge-if-res.patch