dt-bindings: thermal: lmh: Add SDM670 compatible

Document the SDM670 LMh.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260310002037.1863-3-mailingradian@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>

Author: flamingradian

Documentation/devicetree/bindings/thermal/qcom-lmh.yaml

@@ -22,6 +22,9 @@ properties:
           - qcom,sc8180x-lmh
           - qcom,sdm845-lmh
           - qcom,sm8150-lmh
+      - items:
+          - const: qcom,sdm670-lmh
+          - const: qcom,sdm845-lmh
       - items:
           - const: qcom,qcm2290-lmh
           - const: qcom,sm8150-lmh