dt-bindings: clock: drop unneeded quotes and use absolute /schemas path

Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.  Also absolute path
starting with /schemas is preferred.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230609140751.65129-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/ingenic,cgu.yaml

@@ -98,9 +98,9 @@ required:
 
 patternProperties:
   "^usb-phy@[a-f0-9]+$":
-    allOf: [ $ref: "../phy/ingenic,phy-usb.yaml#" ]
+    $ref: /schemas/phy/ingenic,phy-usb.yaml#
   "^mac-phy-ctrl@[a-f0-9]+$":
-    allOf: [ $ref: "../net/ingenic,mac.yaml#" ]
+    $ref: /schemas/net/ingenic,mac.yaml#
 
 additionalProperties: false
 

Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.yaml

@@ -48,7 +48,7 @@ properties:
 patternProperties:
   "^dma-router@[a-f0-9]+$":
     type: object
-    $ref: "../dma/renesas,rzn1-dmamux.yaml#"
+    $ref: /schemas/dma/renesas,rzn1-dmamux.yaml#
 
 required:
   - compatible