sunxi: dts: arm: update devicetree files from Linux kernel tree

sunxi: dts: arm: update devicetree files from Linux kernel tree

Sync the kernel devicetree source files for the Allwinner SoCs with
32-bit cores that do not use OF_UPSTREAM yet. The files were taken
from a v6.18-rc1 tree.

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 994e5818392c and 9fdef3c3d8c2.

This commit also adds a new board devicetree for the A33 Vstar board,
plus one DT overlay for the OrangePi Zero interface board.

This update should not impact any existing U-Boot functionality.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>