ASoC: dt-bindings: renesas,rz-ssi: Document RZ/G3L SoC

Document RZ/G3L SSIF-2 bindings. The RZ/G3L SSIF-2 IP is identical to one
found on the RZ/G2L SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20260304072000.6787-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: bijudas

Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml

@@ -20,6 +20,7 @@ properties:
           - renesas,r9a07g044-ssi  # RZ/G2{L,LC}
           - renesas,r9a07g054-ssi  # RZ/V2L
           - renesas,r9a08g045-ssi  # RZ/G3S
+          - renesas,r9a08g046-ssi  # RZ/G3L
       - const: renesas,rz-ssi
 
   reg: