Add support for codec of F1C100s

Merge series from "Csókás, Bence" <csokas.bence@prolan.hu>:

Support for Allwinner F1C100s/200s series audio was
submitted in 2018 as an RFC series, but was not merged,
despite having only minor errors. However, this is
essential for having audio on these SoCs.
This series was forward-ported/rebased to the best of
my abilities, on top of Linus' tree as of now:
commit 28eb75e178d3 ("Merge tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel")

Link: https://lore.kernel.org/all/cover.1543782328.git.mesihkilinc@gmail.com/
As requested by many, this series will now be split in 2, the DMA and the
ALSA/ASoC codec driver. This is the codec part of the series.
The first part (DMA) is at the link below. The first 3 patches of this
series can be applied and built without the former series, but for working
audio you need them both, plus the last 2 Device Tree patches in this series.
Link: https://lore.kernel.org/linux-kernel/20241122161128.2619172-1-csokas.bence@prolan.hu/