reset: mpfs: select AUXILIARY_BUS

CONFIG_AUXILIARY_BUS is not a user-visible symbol, replace 'depends on'
with 'select'.

Cc: Daire McNamara <daire.mcnamara@microchip.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230502102041.1418397-1-p.zabel@pengutronix.de


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