Merge "Rename native code coverage paths environment variable in `acov`." am: e00048a28b am: 9f1eb641e5 am: 7607e1c318

Original change: https://android-review.googlesource.com/c/platform/development/+/1329073

Change-Id: I6a9a4ea636fe9faa042935f88c4aa5ffc9b3e3a1