Staging: Android alarm: IOCTL command encoding fix

Fixed a bug. Data was being written to user space using an IOCTL
command encoded with _IOC_WRITE access mode.

Signed-off-by: Dae S. Kim <dae@velatum.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>