Exempt Cast ozone from log spam presubmit check
Exempt Cast ozone from log spam presubmit check

ui/ozone/platform/cast is only built in chromecast builds, should
be treated the same way as chromecast/ (it's only under ui/ozone
as a convenience to ozone platform build logic).

BUG=

Review URL: https://codereview.chromium.org/1645573003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#372114}

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