Convert extract_lsdump to python3 am: 97e65cac9f am: ca338da6d4 am: a8a0229694

Original change: https://android-review.googlesource.com/c/platform/test/vts-testcase/vndk/+/1346264

Change-Id: I85f8dc7a7e401b08a65c9f9dfae7247bc3e2a36f