Deprecate 'alarm-update'

Like deprecating alarm-create, we can use alarm-threshold-update and
alarm-combination-update instead of alarm-update.
So, mark alarm-update as 'Deprecated'.

Change-Id: I8c9718d76e40729dc6094611a055c904e27619ba
Merge "Deprecate 'alarm-update'"
Updated from global requirements

Change-Id: I2232c0c00179dd604dbe789b72ce721ded7c5622