[PORT FROM R2] alarm: Migrate legacy suspend/resume to dev_pm_ops

[PORT FROM R2] alarm: Migrate legacy suspend/resume to dev_pm_ops

BZ: 2881

alarm driver uses legacy suspend/resume callbacks. Migrate them to
dev_pm_ops

Orig-Change-Id: I698c5d2112658dac6836963758c0b7fcd8e4d57e
Signed-off-by: MingmingX Zhang <mingmingx.zhang@intel.com>
Conflicts:

	drivers/rtc/alarm.c

Change-Id: I2c5f453d1b36493390e24bef1ce87f4d3d7fe11a
Signed-off-by: Loic Martin <loicx.martin@intel.com>
Reviewed-on: http://android.intel.com:8080/32684
Reviewed-by: Mansoor, Illyas <illyas.mansoor@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>