Initialize color mode if set

ColorDisplayService doesn't start listening for changes until the end
of user setup, and color mode was previously unintialized at service
setup, so restored settings were ignored.

Bug: 79591550
Test: atest FrameworksServicesTest:ColorDisplayServiceTest
Change-Id: I00baed15e1248572d3dfd8f251dee7dc5a355a6c
3 files changed