mfd: mc13xxx: Use regmap irq framework for interrupts

This patch convert mc13xxx MFD driver to use regmap irq framework
for interrupt registration.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --cc drivers/mfd/Kconfig
Simple merge

diff --cc drivers/mfd/mc13xxx-core.c
Simple merge

diff --cc drivers/mfd/mc13xxx.h
Simple merge

diff --cc include/linux/mfd/mc13783.h
Simple merge

diff --cc include/linux/mfd/mc13xxx.h
Simple merge