dt-bindings: rtc: rzn1: add resets property

The RTC on R-Car X5H does have a reset unlike the other versions.

Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Closes: https://lore.kernel.org/CAMuHMdWy6ksspwvj8jRxf6_OATU5rS5p92KyG4+sEF+ag7S9NA@mail.gmail.com
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20261008201953.34307-2-wsa+renesas@sang-engineering.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Documentation/devicetree/bindings/rtc/renesas,rzn1-rtc.yaml

@@ -51,6 +51,9 @@ properties:
   power-domains:
     maxItems: 1
 
+  resets:
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -85,7 +88,11 @@ allOf:
       properties:
         interrupts: false
         interrupt-names: false
+      required:
+        - resets
     else:
+      properties:
+        resets: false
       required:
         - interrupts
         - interrupt-names