Merge "Convert vndk scripts to python3" am: 77cd06c038 am: ea654f3ef3 am: 13653750f7 am: 7a6404b34d

Original change: https://android-review.googlesource.com/c/platform/development/+/1396389

Change-Id: I1121456e00e3cf65809cd5a7deb7bf19f92a6e08