Import Android SDK Platform O

/google/data/ro/projects/android/fetch_artifact \
    --bid 3790152 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-3790152.zip

AndroidVersion.ApiLevel has been modified to appear as 26

Change-Id: I221fa4e1cbc0e088a413cb124801859df1e88f96
252 files changed