Import Android SDK Platform P [4719250]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4719250 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4719250.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: I9ec0a12c9251b8449dba0d86b0cfdbcca16b0a7c
690 files changed