Copy the devicetree source for the A20 SoC and all existing boards
verbatim from the Linux v5.18-rc1 tag.
This commit also adds the following new board devicetrees:
- sun7i-a20-haoyu-marsboard.dts
- sun7i-a20-linutronix-testbox-v2.dts
- sun7i-a20-olinuxino-lime-emmc.dts
This update includes changes to the USB PHY detection GPIO properties
which are needed to convert that driver to use the DM GPIO framework.
Signed-off-by: Samuel Holland <samuel@sholland.org>
