pw_presubmit: Add option to list program steps
pw_presubmit: Add option to list program steps

See also pwrev/32582.

Change-Id: I0a26a9ac1e6f16c6b291e488cea09b111a1747a0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/32560
Pigweed-Auto-Submit: Rob Mohr <d07614a8a0b466db08f68224f87d738b0f9615cf@google.com>
Reviewed-by: Wyatt Hepler <cca3bedb37979eacd157a9bceb473582df8aea1e@google.com>
Commit-Queue: Rob Mohr <d07614a8a0b466db08f68224f87d738b0f9615cf@google.com>

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed