Avoid reporting unhandled config changes to activity

Currently the global configuration is also used as the override
configuration of default display, it is possible that the changed
configuration from relayoutWindow is sent from view root to activity
before handling the relaunch transaction item. So the activity may
receive an unexpected onConfigurationChanged before relaunching.

By enabling the check of activity-handle-able configuration for the
path from view root, the unexpected onConfigurationChanged can be
ignored and proceed to relaunch.

Bug: 145018628
Test: atest ConfigChangeTests#testChangeFontScaleRelaunch
Change-Id: If4c9590583642219ba7b5cd99bbfe84711524cd5