dt-bindings: pinctrl: st,stm32: Correct 'resets' property name

The correct property name for the reset binding is 'resets', not 'reset'.
Assuming actual users are correct, this error didn't show up due to
missing 'additionalProperties: false'. Fix the name and add missing
'additionalProperties'.
Signed-off-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220719214955.1875020-1-robh@kernel.orgSigned-off-by: NLinus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml

@@ -59,6 +59,7 @@ properties:
 patternProperties:
   '^gpio@[0-9a-f]*$':
     type: object
+    additionalProperties: false
     properties:
       gpio-controller: true
       '#gpio-cells':
@@ -68,8 +69,7 @@ patternProperties:
         maxItems: 1
       clocks:
         maxItems: 1
-      reset:
-        minItems: 1
+      resets:
         maxItems: 1
       gpio-ranges:
         minItems: 1