Add callbacks for change in supported device states and non-override

state.

This:
1. Renames DeviceStateListener to DeviceStateCallback as there is more
than one method in the callback.
2. Adds a callback to DeviceStateCallback to notify clients about a
change in supported device states.
3. Adds a callback to DeviceStateCallback to notify clients about a
change in non-override state (the state of the device without
considering override requests).
4. Restructures the IDeviceStateManager callback interface to return a
DeviceStateInfo object on successful registration of the callback
instead of triggering callbacks after registation. This simplifies the
callback code paths.

Bug: 159401801
Bug: 154038218
Fixes: 179291575
Test: atest DeviceStateManagerServiceTest
Test: atest DeviceStateManagerGlobalTest
Test: atest DeviceStateInfoTest

Change-Id: I42841de3e19ec0161a8c7b18c5baac0f2c2548bf