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

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

Assorted fixes, refactorings and additions that are ready, and shave
off some load from upcoming series'.

Improves MMC performance on D1/T113 (missed clock divider), enables
eMMC access on the H616 family (never worked, many thanks to Jernej for
the fix!), DRAM detection fixes for the H616 (now reportedly stable).

Some patches for the upcoming Allwinner A133 SoC support: a few
refactorings, plus the DM clock and pinctrl driver. The DRAM init
routines work, but need some more polishing, that also holds back the
actual enablement patch, which will hopefully follow for v2025.07 still.

Also some preparatory patches for the Allwinner A523 SoC support, for
now just to improve the FEL save/restore code. There will be more patches
coming up for this, ideally also in the coming cycle still.

Gitlab CI passed, and I booted that briefly on some boards.