Import Android SDK Platform O

/google/data/ro/projects/android/fetch_artifact \
    --bid 3938862 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-platforms-3938862.zip

AndroidVersion.ApiLevel has been modified to appear as 26

Change-Id: I26f57efa49e80e13cfe11b83cd2678271454ed66
214 files changed