dt-bindings: riscv: sophgo: Add SG2044 compatible string

Add compatible string for the Sophgo SG2044 SoC and the SRD3-10
board.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Link: https://lore.kernel.org/r/20250413223507.46480-10-inochiama@gmail.com
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>

Documentation/devicetree/bindings/riscv/sophgo.yaml

@@ -35,6 +35,10 @@ properties:
           - enum:
               - milkv,pioneer
           - const: sophgo,sg2042
+      - items:
+          - enum:
+              - sophgo,srd3-10
+          - const: sophgo,sg2044
 
 additionalProperties: true