dt-bindings: timer: renesas,ostm: Document RZ/V2N (R9A09G056) support

Document support for the Renesas OS Timer (OSTM) found on the Renesas
RZ/V2N (R9A09G056) SoC. The OSTM IP on RZ/V2N is identical to that on
other RZ families, so no driver changes are required as `renesas,ostm`
will be used as fallback compatible.

Also update the bindings to require the "resets" property for RZ/V2N
by inverting the logic: all SoCs except RZ/A1 and RZ/A2 now require
the "resets" property.

Signed-off-by: Lad Prabhakar <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Daniel Lezcano <[email protected]>

Author: prabhakarlad

Documentation/devicetree/bindings/timer/renesas,ostm.yaml

@@ -26,6 +26,7 @@ properties:
           - renesas,r9a07g043-ostm # RZ/G2UL and RZ/Five
           - renesas,r9a07g044-ostm # RZ/G2{L,LC}
           - renesas,r9a07g054-ostm # RZ/V2L
+          - renesas,r9a09g056-ostm # RZ/V2N
           - renesas,r9a09g057-ostm # RZ/V2H(P)
       - const: renesas,ostm        # Generic
 
@@ -54,12 +55,11 @@ required:
 if:
   properties:
     compatible:
-      contains:
-        enum:
-          - renesas,r9a07g043-ostm
-          - renesas,r9a07g044-ostm
-          - renesas,r9a07g054-ostm
-          - renesas,r9a09g057-ostm
+      not:
+        contains:
+          enum:
+            - renesas,r7s72100-ostm
+            - renesas,r7s9210-ostm
 then:
   required:
     - resets