Introduce //build_overrides/wayland.gni to simplify the management of
the wayland dependencies.
Bug: chromium:1327041
Bug: angleproject:7409
Change-Id: Ib1e120c722aec6ff3cb171f39a8e794b93799129
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93788
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: dan sinclair <dsinclair@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>