Fix video_decode_accelerator_unittest build on non-CrOS
When running this unittest in non-CrOS systems, DisplayConfigurator
configure_display_ needs to be initialized as true as well, so the Native
Display will actually be created properly at ::Init time.
BUG=none
TEST=video_decode_accelerator_unittest --vmodule=*/ui/ozone/platform/drm/*=3,
and check the Ozone DRM informational messages that creates the display
Review URL: https://codereview.chromium.org/
995103002
Cr-Commit-Position: refs/heads/master@{#320120}