contrib: Refactor update_program_fw to include common flag handling

Refactor update_program_fw to use common flag handling, and use
commonly known flag names.

BUG=none
TEST=Run on puff and variants.

Change-Id: I0afad7b883d1a820566a07bccd9ced524beb1b4f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2255731
Reviewed-by: Andrew McRae <amcrae@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Tested-by: Andrew McRae <amcrae@chromium.org>
Commit-Queue: Andrew McRae <amcrae@chromium.org>
1 file changed