dt-bindings: mfd: qcom,spmi-pmic: Fix TM ADC node schema on PM8998

There are two bindings for Qualcomm SPMI PMIC Thermal Monitoring ADC:
one for ADC HC and one for ADC TM5 and TM7.  PM8998 uses the former one,
so fix matching of child schema:

  qcom/msm8998-asus-novago-tp370ql.dtb: pmic@0: adc-tm@3400:compatible:0: 'qcom,spmi-adc-tm-hc' is not one of ['qcom,spmi-adc-tm5', 'qcom,spmi-adc-tm5-gen2', 'qcom,adc-tm7']

Fixes: 3f5117be95 ("dt-bindings: mfd: convert to yaml Qualcomm SPMI PMIC")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220828084341.112146-15-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml

@@ -103,7 +103,7 @@ patternProperties:
 
   "^adc-tm@[0-9a-f]+$":
     type: object
-    $ref: /schemas/thermal/qcom-spmi-adc-tm5.yaml#
+    # ref depends on compatible, see allOf below
 
   "^audio-codec@[0-9a-f]+$":
     type: object
@@ -150,6 +150,22 @@ required:
   - compatible
   - reg
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8998
+    then:
+      patternProperties:
+        "^adc-tm@[0-9a-f]+$":
+          $ref: /schemas/thermal/qcom-spmi-adc-tm-hc.yaml#
+    else:
+      patternProperties:
+        "^adc-tm@[0-9a-f]+$":
+          $ref: /schemas/thermal/qcom-spmi-adc-tm5.yaml#
+
 additionalProperties: false
 
 examples: