dt-bindings: Drop redundant 'maxItems/minItems' in if/then schemas

Another round of removing redundant minItems/maxItems when 'items' list is
specified. This time it is in if/then schemas as the meta-schema was
failing to check this case.

If a property has an 'items' list, then a 'minItems' or 'maxItems' with the
same size as the list is redundant and can be dropped. Note that is DT
schema specific behavior and not standard json-schema behavior. The tooling
will fixup the final schema adding any unspecified minItems/maxItems.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for IIO
Link: https://lore.kernel.org/r/20220503162738.3827041-1-robh@kernel.org

Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml

@@ -71,7 +71,6 @@ allOf:
     then:
       properties:
         clock-output-names:
-          minItems: 1
           maxItems: 1
 
   - if:
@@ -102,7 +101,6 @@ allOf:
       properties:
         clock-output-names:
           minItems: 3
-          maxItems: 3
 
   - if:
       properties:
@@ -113,16 +111,12 @@ allOf:
     then:
       properties:
         clocks:
-          minItems: 3
-          maxItems: 3
           items:
             - description: Bus clock for register access
             - description: 24 MHz oscillator
             - description: 32 kHz clock from the CCU
 
         clock-names:
-          minItems: 3
-          maxItems: 3
           items:
             - const: bus
             - const: hosc
@@ -142,7 +136,6 @@ allOf:
       properties:
         clocks:
           minItems: 3
-          maxItems: 4
           items:
             - description: Bus clock for register access
             - description: 24 MHz oscillator
@@ -151,7 +144,6 @@ allOf:
 
         clock-names:
           minItems: 3
-          maxItems: 4
           items:
             - const: bus
             - const: hosc
@@ -174,14 +166,12 @@ allOf:
     then:
       properties:
         interrupts:
-          minItems: 1
           maxItems: 1
 
     else:
       properties:
         interrupts:
           minItems: 2
-          maxItems: 2
 
 required:
   - "#clock-cells"