Import Android SDK Platform O

/google/data/ro/projects/android/fetch_artifact \
    --bid 3960435 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-3960435.zip

AndroidVersion.ApiLevel has been modified to appear as 26

Change-Id: I8ee2050050f0a2fac7e3406f1efde988b434b476
275 files changed