Merge "Add script that dumps all product config varaibles." into main am: 492eea80

Original change: https://android-review.googlesource.com/c/platform/build/+/3247887



Change-Id: I416e0c6697ca47dc55028fdd90ed28aa361a9b55
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>