Add whitelist for mcts modules

Some MCTS modules should not be removed from CTS because they are
dependencies of both MCTS and CTS.

Add a whitelist as a short term solution.

Test: m cts EXCLUDE_MCTS=true
Bug: 349372705
BYPASS_INCLUSIVE_LANGUAGE_REASON=for mcts only
Change-Id: I26ada6da95a8b3547de9e54781b744facb121b05