Greg Spencer a38b72119b Clean up scenario app scripts (flutter/engine#20641)
I just made a pass on the scenario scripts so that they can be more easily run from the scenario directory, set the ANDROID_HOME correctly, and generally fixed lint errors.

Also compile_android_aot.sh didn't appear to work, and I think I fixed it (it builds now).
2020-08-19 19:14:38 -07:00
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