ARM: dts: sun50i: H6: Sync from Linux v5.18-rc1

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>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c610025..cfc5fea 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -694,7 +694,9 @@
 	sun50i-h6-orangepi-lite2.dtb \
 	sun50i-h6-orangepi-one-plus.dtb \
 	sun50i-h6-pine-h64.dtb \
-	sun50i-h6-tanix-tx6.dtb
+	sun50i-h6-pine-h64-model-b.dtb \
+	sun50i-h6-tanix-tx6.dtb \
+	sun50i-h6-tanix-tx6-mini.dtb
 dtb-$(CONFIG_MACH_SUN50I_H616) += \
 	sun50i-h616-orangepi-zero2.dtb
 dtb-$(CONFIG_MACH_SUN50I) += \