[coreboot-gerrit] Change in coreboot[master]: Documentation: add util/pmh7tool to util.md

[Tom Hiller (Code Review)]

Tom Hiller has posted comments on this change. ( https://review.coreboot.org/28368 )

Change subject: Documentation: add util/pmh7tool to util.md
......................................................................

Patch Set 1: Code-Review-1

There is a script under util called "util_readme" that auto generates `Documentation/util.md` and `util/README.md` based on the `description.md` file under each util directory.  Can you add a `description.md` for pmh7tool and run the script instead and submit those as changes?