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: 3f5117be ("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