Import Android SDK Platform O

/google/data/ro/projects/android/fetch_artifact \
    --bid 3853963 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-3853963.zip

AndroidVersion.ApiLevel has been modified to appear as 26

Change-Id: I54d0ce533b6588509b73467805d6c2686a47e89c
279 files changed