util/release: Update genrelnotes.script to the latest version

Internal changes:
- Fix shellcheck issues.
- Add some help text and update section header text.
- Reorder sections to try to get better estimates of what the commits
were mainly touching.
- Start making the script slightly less coreboot-centric.
- Don't print git errors.

Changes in output:
- Find new and deleted CPUs, SOCs, northbridges, southbridges, and SIOs.
- Show new users.
- Show before and after commit count for all authors.

Change-Id: I9858436f9458b2859a91273a525901df34796df4
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16848
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions