gn2bp: Add script to the tool_files in get_tool_files am: 6997586226

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2327488

Change-Id: Ie9dd46181d077aefb286650d0d80479820dd55a2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>