RestrictedLockUtils was split into ...Internal

This means that in some cases RestrictedLockUtils has to be used and in
some RestrictedLockUtilsInternal.

This causes a lot of trivial code changes.

I also updated the ordering of the imports in all affected files.

Bug: 110953302
Test: Built
      make -j RunSettingsRoboTests
Change-Id: I9bdf8b89134f853bae4f38c81af436715c73e924