project wide changes to maintainer ACLs

[Brad Bishop]

OpenBMC maintainers

This coming Sunday, November 6th, absent any feedback here I am planning 
on:

1 - Removing admin repository access by <xyz>-maintainers groups from 
all projects on Github that use the OpenBMC Gerrit instance for peer 
review (no change for projects that do not use the Gerrit instance like 
the kernel, u-boot, or qemu).
2 - Copying the submit prolog rules from the openbmc/openbmc Gerrit 
project to the openbmc-all-repos Gerrit project.

Impacts to maintainers are:

1 - Members of <xyz-maintainers> groups will no longer have any special 
access to the GitHub repository (such as push, force-push).  If anyone 
requires such access, please respond to this email.

2 - You may now delegate the Gerrit OWNER role via the OWNERS file in 
your project, as supported by the OWNERS plugin documented here:
https://gerrit.googlesource.com/plugins/owners/+/refs/heads/master/config.md

If there are any questions or concerns with the above, please reply.

thanks,
Brad