Describe requested visibilities in public types (4/n: sysui)

This CL migrates requestedVisibilities (InsetsVisibilities) to
requestedVisibleTypes (int) at System UI.

Bug: 253420890
Bug: 234093736
Test: atest RegisterStatusBarResultTest LightsOutNotifControllerTest
      CentralSurfacesCommandQueueCallbacksTest
      SystemBarAttributesListenerTest CommandQueueTest SizeCompatTests
Change-Id: I8f1644fae63218ccad04defc44b541d7415f50ed