RTC: Convert rtc drivers to use the alarm_irq_enable method

RTC: Convert rtc drivers to use the alarm_irq_enable method

Some rtc drivers use the ioctl method instead of the alarm_irq_enable
method for enabling alarm interupts. With the new virtualized RTC
rework, its important for drivers to use the alarm_irq_enable instead.

This patch converts the drivers that use the AIE ioctl method to
use the alarm_irq_enable method. Other ioctl cmds are left untouched.

I have not been able to test or even compile most of these drivers.
Any help to make sure this change is correct would be appreciated!

CC: Alessandro Zummo <[email protected]>
CC: Thomas Gleixner <[email protected]>
CC: Marcelo Roberto Jimenez <[email protected]>
Reported-by: Marcelo Roberto Jimenez <[email protected]>
Tested-by: Marcelo Roberto Jimenez <[email protected]>
Signed-off-by: John Stultz <[email protected]>