dt-bindings: clk: rs9: Add 9FGV0441

This is a 4-channel variant of 9FGV series.

Signed-off-by: Alexander Stein <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Marek Vasut <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

Documentation/devicetree/bindings/clock/renesas,9series.yaml

···
   - 9FGV0241:
     0 -- DIF0
     1 -- DIF1
+  - 9FGV0441:
+    0 -- DIF0
+    1 -- DIF1
+    2 -- DIF2
+    3 -- DIF3
 
 maintainers:
   - Marek Vasut <[e-mail]>
···
   compatible:
     enum:
       - renesas,9fgv0241
+      - renesas,9fgv0441
 
   reg:
     description: I2C device address