Revert "Android alarm: IOCTL command encoding fix"

commit 87dd2c484ae11e2e0a34996d96bfbfaf20f57b45 upstream.

Commit 8d60d6aaf085d1728a4fda1f59b47622fe2ab495. changed the
ANDROID_ALARM_GET_TIME ioctls from IOW to IOR.  While technically
correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the
commit breaks a userspace ABI used by all existing Android devices
for a purely cosmetic reason.  Revert it.

Change-Id: Iee360bb07891e317c4172ef544fc77d99488e5e9
Signed-off-by: Andrii Beregovenko <a.beregovenko@ti.com>