consider alrm->enable in pcf50633_rtc_set_alarm

Hi Balaji,

Mickey mentioned to me that he had trouble with the RTC wakeup interrupt.
I had a quick look at the problem and it seems that alrm->enable doesn't
get propagated when setting the alarm time with RTC_WKALM_SET.

Does something like my patch below look right ? We also don't handle
alrm->pending, but I'm not sure if we have to.

I tested this only very lightly since my current andy-tracking crashes
in soc_suspend. If nobody else beats me to it, I'll have a look at it
tomorrow.

- Werner

---------------------------------- cut here -----------------------------------

According to Documentation/rtc.txt, RTC_WKALM_SET sets the alarm time
and enables/disables the alarm. We implement RTC_WKALM_SET through
pcf50633_rtc_set_alarm. The enabling/disabling part was missing.

Signed-off-by: Werner Almesberger <werner@openmoko.org>
Reported-by: Michael 'Mickey' Lauer <mickey@openmoko.org>

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