[coreboot] Question about PR

[bzt]

Hi,

I'd like to commit a patch to coreboot. I've followed the tutorials on
https://doc.coreboot.org/tutorial/part2.html

I've set up gerrit account, etc. created a local repo, configured git
for submit, set up change-id hook, etc. etc. etc. However at step 4a,
"git push", I got an error message from the server about missing
"Push" rights and to contact the administrator. How can I do that?

I was able to push the commit as a private patch:
https://review.coreboot.org/c/coreboot/+/45480

I'm not sure if you can see this url, or is this for my user only.
I guess now I should add a reviewer, but how and who? Or how can I get
a "Push" right?

Thanks for your help,
bzt