dt-bindings: clk: rs9: Add 9FGV0841

This is an 8-channel variant of 9FGV series.

Acked-by: Alexander Stein <[e-mail]>
Acked-by: Conor Dooley <[e-mail]>
Signed-off-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

···
     1 -- DIF1
     2 -- DIF2
     3 -- DIF3
+  - 9FGV0841:
+    0 -- DIF0
+    1 -- DIF1
+    2 -- DIF2
+    3 -- DIF3
+    4 -- DIF4
+    5 -- DIF5
+    6 -- DIF6
+    7 -- DIF7
 
 maintainers:
   - Marek Vasut <[e-mail]>
···
     enum:
       - renesas,9fgv0241
       - renesas,9fgv0441
+      - renesas,9fgv0841
 
   reg:
     description: I2C device address