media: dt-bindings: media: sunxi-ir: Add H6 compatible

There are some minor differences between A31 or A64 with H6 IR peripheral.

But A31 IR driver is compatible with H6.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

Documentation/devicetree/bindings/media/sunxi-ir.txt

@@ -6,6 +6,7 @@ Required properties:
 	"allwinner,sun5i-a13-ir"
 	"allwinner,sun6i-a31-ir"
 	"allwinner,sun50i-a64-ir", "allwinner,sun6i-a31-ir"
+	"allwinner,sun50i-h6-ir", "allwinner,sun6i-a31-ir"
 - clocks	    : list of clock specifiers, corresponding to
 		      entries in clock-names property;
 - clock-names	    : should contain "apb" and "ir" entries;