dt-bindings: mfd: Fix pinctrl node name warnings

The recent addition pinctrl.yaml in commit c09acbc499 ("dt-bindings:
pinctrl: use pinctrl.yaml") resulted in some node name warnings:

Documentation/devicetree/bindings/mfd/cirrus,lochnagar.example.dt.yaml: \
 lochnagar-pinctrl: $nodename:0: 'lochnagar-pinctrl' does not match '^(pinctrl|pinmux)(@[0-9a-f]+)?$'
Documentation/devicetree/bindings/mfd/cirrus,madera.example.dt.yaml: \
 codec@1a: $nodename:0: 'codec@1a' does not match '^(pinctrl|pinmux)(@[0-9a-f]+)?$'
Documentation/devicetree/bindings/mfd/brcm,cru.example.dt.yaml: \
 pin-controller@1c0: $nodename:0: 'pin-controller@1c0' does not match '^(pinctrl|pinmux)(@[0-9a-f]+)?$'

Fix the node names to the preferred 'pinctrl'. For cirrus,madera,
nothing from pinctrl.yaml schema is used, so just drop the reference.

Fixes: c09acbc499 ("dt-bindings: pinctrl: use pinctrl.yaml")
Cc: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220303232350.2591143-1-robh@kernel.org

Documentation/devicetree/bindings/mfd/brcm,cru.yaml

@@ -39,7 +39,7 @@ patternProperties:
   '^phy@[a-f0-9]+$':
     $ref: ../phy/bcm-ns-usb2-phy.yaml
 
-  '^pin-controller@[a-f0-9]+$':
+  '^pinctrl@[a-f0-9]+$':
     $ref: ../pinctrl/brcm,ns-pinmux.yaml
 
   '^syscon@[a-f0-9]+$':
@@ -94,7 +94,7 @@ examples:
             reg = <0x180 0x4>;
         };
 
-        pin-controller@1c0 {
+        pinctrl@1c0 {
             compatible = "brcm,bcm4708-pinmux";
             reg = <0x1c0 0x24>;
             reg-names = "cru_gpio_control";

Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml

@@ -126,7 +126,7 @@ properties:
       clock-frequency:
         const: 12288000
 
-  lochnagar-pinctrl:
+  pinctrl:
     type: object
     $ref: /schemas/pinctrl/cirrus,lochnagar.yaml#
 
@@ -255,7 +255,7 @@ required:
   - reg
   - reset-gpios
   - lochnagar-clk
-  - lochnagar-pinctrl
+  - pinctrl
 
 additionalProperties: false
 
@@ -293,7 +293,7 @@ examples:
                 clock-frequency = <32768>;
             };
 
-            lochnagar-pinctrl {
+            pinctrl {
                 compatible = "cirrus,lochnagar-pinctrl";
 
                 gpio-controller;

Documentation/devicetree/bindings/pinctrl/cirrus,madera.yaml

@@ -107,9 +107,6 @@ properties:
 
     additionalProperties: false
 
-allOf:
-  - $ref: "pinctrl.yaml#"
-
 required:
   - pinctrl-0
   - pinctrl-names