[ANN] U-Boot v2023.10-rc1 released

Hey all,

So I'm a day late with -rc1 because as may have been noticed, things went a bit wrong at the end of the day yesterday when I hoped to squeeze in a few of the last things that needed to come in. I may or may not have learned my lesson, but here's -rc1 now. There's still some outstanding things to come in by -rc2, both in my own queue and hopefully a few other custodian trees too.

In terms of a changelog, git log --merges v2023.07..v2023.10-rc1 contains what I've pulled but as always, better PR messages and tags will provide better results here.

I'm going to try and stay on schedule now and that means the rest of the rcs every other Monday, and with final release on October 2nd, 2023. Thanks all!