dt-bindings: thermal: Drop unneeded quotes

Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.

Signed-off-by: Rob Herring <[e-mail]>
Reviewed-by: Neil Armstrong <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Daniel Lezcano <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/thermal/amlogic,thermal.yaml

···
 
   amlogic,ao-secure:
     description: phandle to the ao-secure syscon
-    $ref: '/schemas/types.yaml#/definitions/phandle'
+    $ref: /schemas/types.yaml#/definitions/phandle
 
   '#thermal-sensor-cells':
     const: 0

Documentation/devicetree/bindings/thermal/imx-thermal.yaml

···
       - const: temp_grade
 
   fsl,tempmon:
-    $ref: '/schemas/types.yaml#/definitions/phandle'
+    $ref: /schemas/types.yaml#/definitions/phandle
     description: Phandle to anatop system controller node.
 
   fsl,tempmon-data:
-    $ref: '/schemas/types.yaml#/definitions/phandle'
+    $ref: /schemas/types.yaml#/definitions/phandle
     description: |
       Deprecated property, phandle pointer to fuse controller that contains
       TEMPMON calibration data, e.g. OCOTP on imx6q. The details about

Documentation/devicetree/bindings/thermal/qoriq-thermal.yaml

···
     maxItems: 1
 
   fsl,tmu-range:
-    $ref: '/schemas/types.yaml#/definitions/uint32-array'
+    $ref: /schemas/types.yaml#/definitions/uint32-array
     description: |
       The values to be programmed into TTRnCR, as specified by the SoC
       reference manual. The first cell is TTR0CR, the second is TTR1CR, etc.
     maxItems: 4
 
   fsl,tmu-calibration:
-    $ref: '/schemas/types.yaml#/definitions/uint32-matrix'
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
     description: |
       A list of cell pairs containing temperature calibration data, as
       specified by the SoC reference manual. The first cell of each pair