reset: uniphier: Add audio system and video input reset control for PXs3

Add reset lines for audio subsystem (AIO) and video input subsystem (EXIV)
on UniPhier PXs3 SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1633399842-1402-2-git-send-email-hayashi.kunihiko@socionext.com


Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>