Add `xcodebuild` specific warnings to the ignore list.
Add `xcodebuild` specific warnings to the ignore list.

Bug: https://b/260140834
Test: ./gradlew -Pandroidx.validateNoUnrecognizedMessages --no-build-cache --no-configuration-cache --rerun-tasks :benchmark:benchmark-darwin-samples:darwinBenchmarkResults
Change-Id: I9af3adb5a038bfd37cdf71c55701091dd28da9ea

AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx