High Brightness Mode (HBM) Refresh Rate Limiting.

Defines refresh-rate limits for high-brightness-mode in display-config
xml files. DisplayModeDirector listens to HBM status changes from
DisplayManager and applies the pre-defined refresh-rate limits when HBM
is enabled.

Test: Manual, verify a Refresh Rate vote when HBM is enabled, and a
      null-vote when disabled.
Test: atest com.android.server.display
Bug: 181955334
Change-Id: Id642cbff96fca9ce79a50d6cd97e75cd6061ac74