Add config_hasRemovableLid

If a device features a dock with a removable lid, lidOpenRotation
overrides the rotation even if it was undocked (technically the lid is
still open).
This setting tells the framework whether to apply lidOpenRotation to
undocked devices.

Change-Id: I40064686fdf4aedff0ec32a6e909f8add68179cd
Merge "Add config_hasRemovableLid" into android-4.4