Introduce separate rotation lock settings per device state.

This will be flagged with config_perDeviceStateRotationLock.
If true, a distinct rotation lock settings can be maintained for each
device state. Some device states won't need their own rotation lock
setting and in those cases, the setting of the previous device state
will be used.

The existing global setting "Settings.System.ACCELEROMETER_ROTATION"
still works the same and reflects the setting for the currently active
state.

Test: atest SystemUiTests:RotationLockControllerImplTest
Test: atest SystemUiTests:DeviceStateRotationLockSettingControllerTest
Bug: 183001527
Change-Id: I1cbcfae7db7c01745ea7ad665432f8651d8f1546