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Most internal panels expose a single native mode, and for those
internal displays with additional modes, Chrome does not have
use-cases which require those extra modes.

This CL restrict internal displays to expose only their preferred
mode to Chrome.

Test: ozone_unittests && display_unittests
Change-Id: I0f9480846dc7876992110aca0f28e81384a33cb2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2595621Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Commit-Queue: Gil Dekel <gildekel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840218}