Disable specifying alarm itself in combination rule

Currently, update combination alarm can specify itself in alarm_ids,
however, that will cause endless loop when evaluating this alarm.

This patch adds a check to disable such behavior.

Change-Id: I63b465c59fe39206ae04b0736482d1ffd7bf59c4
Closes-Bug: #1304419
Merge "Disable specifying alarm itself in combination rule"