Pipe potential wakeup events from sensor service

Sensor events from wakeup sensors can cause CPU wakeups. Exposing an
aidl method to receive notification of such events from sensor service
native code.

Creating a helper method to retreive a Sensor object given a sensor
handle in SensorManager.
These notifications will be used to attribute to a wakeup in
CpuWakeupStats in a subsequent change.

Test: Manually trigger sensor events and check logcat.

Bug: 275436924
Change-Id: Ia16fa43dcd82e9a869db3b510292694a51e2b995