In rtc generic interface of setting alarm, it will check the alarm time
value valid or not, so rtc_periodic_alarm is redundant, remove it.
Signed-off-by: NJett.Zhou <jtzhou@marvell.com>
Acked-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>