Add back ACCELEROMETER_ROTATION_ANGLES and update references

This needed to move back into fw/b, because it needs to be
accessed from inside the RotationPolicy. Previously
(when this constant and Setting were located in lineage-sdk),
the settings for the display rotation had no effect, because we
couldn't query the correct set of settings.

Change-Id: Icce249925a578c328db3884e5d332b20d6e7db6c
Fixes: BUGBASH-2042