DO NOT MERGE Reduce TIMER_INTERVAL_FOR_WAKELOCK_IN_MS to 100ms

The bluedroid wakelock locked time has increased 2.5x since K.
Reduce the 3s interval to reduce the time that the wakelock is
held, allowing the kernel to suspend more frequently. By
reducing this, wakelock usage returns to roughly K levels.

This in turn reduces BT process power usage.

Bug: 18357273
Change-Id: I7c3bddffafb0fa59468b8dd5718220be8ac85506