Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sunxi

Not many and nothing really exciting this time: there are more patches
in fly, but they are not ready yet.  I will also send some DT updates
and new board defconfig files later, once they have seen the list. I am
aware of the USB rebasing repo efforts, but would like to see how this
plays out, also we have one compatibility issue that I painstakingly
work around in the U-Boot tree for the last three years or so. So for
now I stick to the previous approach.

So now just some easy changes: support for USB peripheral mode on the
Allwinner F1C100s, T113-s3 SPI boot support, and some SPL cleanup
patches.

The branch passed the gitlab CI run, and brief boot testing on some
boards didn't turn up any issues.