Add a device managed API for reset_controller_register().

This helps in reducing code in .remove callbacks and sometimes
dropping .remove callbacks entirely.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>