dt-bindings: pinctrl: qcom,sc7280: fix matching pin config

The TLMM pin controller follows generic pin-controller bindings, so
should have subnodes with '-state' and '-pins'.  Otherwise the subnodes
(level one and two) are not properly matched.  This method also unifies
the bindings with other Qualcomm TLMM and LPASS pinctrl bindings.

Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221016170035.35014-34-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,sc7280-pinctrl.yaml

@@ -47,9 +47,17 @@ properties:
 
   wakeup-parent: true
 
-#PIN CONFIGURATION NODES
 patternProperties:
-  '-pins$':
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-sc7280-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-sc7280-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-sc7280-tlmm-state:
     type: object
     description:
       Pinctrl node's client devices use subnodes for desired pin configuration.
@@ -162,7 +170,7 @@ examples:
         gpio-ranges = <&tlmm 0 0 175>;
         wakeup-parent = <&pdc>;
 
-        qup_uart5_default: qup-uart5-pins {
+        qup_uart5_default: qup-uart5-state {
             pins = "gpio46", "gpio47";
             function = "qup13";
             drive-strength = <2>;