Migrate cros_display_config.mojom to the new Mojo types

Convert the implementation and all users of the
ash::mojom::CrosDisplayConfigController and CrosDisplayConfigObserver
interfaces.

Bug: 955171
Change-Id: Ib5b8d6fdf20674ac00efa97c13c511a4864b5229
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1837620
Commit-Queue: Henrique Ferreiro <[email protected]>
Reviewed-by: Oksana Zhuravlova <[email protected]>
Reviewed-by: Emily Stark <[email protected]>
Reviewed-by: Denis Kuznetsov <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Cr-Commit-Position: refs/heads/master@{#705903}
32 files changed