Initial implemetation of brillo_update_payload script

BUG=b:23599483
TEST=Run locally with various commands/args combinations

Change-Id: I9d8449450cc215b65cf199e0d0b221ca450ccd8e
Reviewed-on: https://chromium-review.googlesource.com/297600
Commit-Ready: Jason Kusuma <jkusuma@chromium.org>
Tested-by: Jason Kusuma <jkusuma@chromium.org>
Reviewed-by: Alex Deymo <deymo@chromium.org>
1 file changed
tree: f912965a39fc55ff101102fc0c8395a1f847348c
  1. scripts/