mfd: pm8xxx-irq: get rid of using chained handler

The chained handler bypasses the flow handlers, which are essential
in managing the interrupts while they are disabled or suspended.

Remove the usage of chained handlers and switch to using action handlers.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>

Conflicts:

	drivers/mfd/pm8xxx-irq.c
1 file changed