Events: Update alarm count when user dismisses an event.
Events: Update alarm count when user dismisses an event.

This patch updates the alarm count of various entities related
to an event, when an event is dismissed by an user.

Change-Id: I2557bbe8c133ee3eb3911162189bcf782080fae1
Signed-off-by: Darshan N <d2c6d450ab98b078f2f1942c995e6d92dd504bc8@gmail.com>

skyrings/skyring,skyrings/skyring,skyrings/skyring,skyrings/skyring