Stop 1 sec updates of ECBM Notification

Previously, the ECBM notification would call update
1/sec to update the time before we get out of ECBM
in the notification. In the new system, this causes
a sound to occur every time the notification updates.

This fixes the issue by utilizing the notification
when() method instead.

Test: ECBM mode on Vzw SIM
Bug: 38175843
Change-Id: I1cdef9c1b17a0d2ccbb2c8b51928c05b0095f839
2 files changed