[lavapipe] Consolidate mako inputs to mesa_python_action

Bug: 329499191

Change-Id: Ib17f46bcfb930146aa7df7ef60739facf75b40f1
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/1012032
Reviewed-by: Craig Stout <cstout@google.com>
Commit-Queue: John Rosasco <rosasco@google.com>