Import Android SDK Platform P [4477446]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4477446 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-4477446.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: Ie99e2c2fc524b66a421ac175b153cd07e171e6be
234 files changed