pinctrl-rockchip: select mfd_syscon
rtc: hym8563: set uie_unsupported

The alarm of the hym8563 only supports a minute-wise accuracy, while
the uie wants an alarm one second in the future. Therefore things like
select will fail with a timeout, because the next alarm will happen in
a worst case of 60 seconds.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>