Initial firmware_builder for the PDC repo Add the initial firmware_builder.py script to be called by CI. Only the "test" parameter is supported at this time. BUG=none TEST=./firmware_builder.py --metrics /tmp/pdc-metrics test Change-Id: I00e1700c01cf4b96253f3fd346f7465905dfc234 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/pdc/+/7363434 Auto-Submit: Keith Short <[email protected]> Tested-by: Keith Short <[email protected]> Reviewed-by: Tristan Honscheid <[email protected]> Commit-Queue: Tristan Honscheid <[email protected]>