Import Android SDK Platform O

/google/data/ro/projects/android/fetch_artifact \
    --bid 3768571 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-3768571.zip

AndroidVersion.ApiLevel has been modified to appear as 26

Change-Id: If394d55aee036ae9f3d4378e66dffa0e07b53d9e
169 files changed