Merge "Add script to update prebuilt dex" am: 93976bcf78 am: 6cbe202a3d am: b1fbc94ff2 am: e6b8b949b2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1360500

Change-Id: Idc3cb720e010912d1cddc5805d4cb81e202939a8