Import Android SDK Platform P [4477446]

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

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: If0559643d7c328e36aafca98f0c114641d33642c
708 files changed