rtc: rtc-twl: Switch to using threaded irq
rtc: rtc-twl: Switch to using threaded irq

The driver is accessing to i2c bus in interrupt handler.
Therefore, it should use threaded irq.

Signed-off-by: Ilkka Koskinen <5dcd853e6765ee14049303d47ce83faf317dd738@nokia.com>
Acked-by: Balaji T K <f0390b3e7c10fea0f9130d79020718fd0f40ef6b@ti.com>
Signed-off-by: John Stultz <33837adfb53316eae44aad04041e1240088d76fd@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs