dt-bindings: usb: sunxi-musb: add Allwinner A523 compatible string

The Allwinner A523/T527 SoCs have a MUSB controller fully compatible to
the D1 (and ultimately the A33), with five endpoints.

Add the new name to the list of compatible strings.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20241111013033.22793-9-andre.przywara@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml

@@ -24,6 +24,7 @@ properties:
               - allwinner,sun8i-a83t-musb
               - allwinner,sun20i-d1-musb
               - allwinner,sun50i-h6-musb
+              - allwinner,sun55i-a523-musb
           - const: allwinner,sun8i-a33-musb
       - items:
           - const: allwinner,sun50i-h616-musb