ASACORE-1258: Fix bogus error when adding multiple Prop Changed Listeners

Change-Id: Ie2dbe75ba5f6a8ee20b5360faf6ee411456e6b7a
Signed-off-by: Steve Kinneberg <stevek@qce.qualcomm.com>
Merge "ASACORE-1258: Fix bogus error when adding multiple Prop Changed Listeners" into RB14.12