Make new, private dynamic color resources accessible from Java

The colors were introduced in topic:
https://googleplex-android-review.git.corp.google.com/q/topic:%22revert-30359491-revert-30126328-material-token-sync-NUVRCHNJFC-VHHANOKKHR%22

Bug: 376195115
Change-Id: I31dfff9ef88b2e50899af388995eb209f78579cc
Test: presubmit
Flag: EXEMPT Un-flaggable refactor of private color resources