Merge "Back up peak refresh rate and min refresh rate" into main

core/java/android/provider/Settings.java

...om/android/internal/display/RefreshRateSettingsUtils.java

.../src/android/provider/settings/backup/SystemSettings.java

...rovider/settings/validators/SystemSettingsValidators.java

.../src/com/android/providers/settings/SettingsProvider.java

...rovider/test/src/android/provider/SettingsBackupTest.java

...m/android/server/display/feature/DisplayManagerFlags.java

.../com/android/server/display/feature/display_flags.aconfig

.../com/android/server/display/mode/DisplayModeDirector.java

.../android/server/display/RefreshRateSettingsUtilsTest.java

.../android/server/display/mode/DisplayModeDirectorTest.java