Copy the devicetree source for the H6 SoC and all existing boards
from the Linux v5.18-rc1 tag.
To maintain ABI compatibility with existing LTS kernels, one change
moving some IP blocks to the r_intc interrupt controller is excluded.
This effectively reverts Linux commits 189bef235dd3 and 73088dfee635.
This commit also adds the following new board devicetrees:
- sun50i-h6-pine-h64-model-b.dts
- sun50i-h6-tanix-tx6-mini.dts
This update should not impact any existing U-Boot functionality.
Signed-off-by: Samuel Holland <samuel@sholland.org>
