dt-bindings: thermal: mediatek: Make resets optional for MT8196

Both LVTS-AP and LVTS-MCU may be shared with SoC-internal MCUs
running some sort of firmware that checks thermals in order to
scale frequency, or to take action for critical SoC thermal
protection - and this is seen on most MT8196 boards.

Make resets optional, as doing a HW reset on such boards will
result in either an immediate thermal protect shutdown or in
a rather important and usually permanent system slowdown.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20260721105230.101906-2-angelogioacchino.delregno@collabora.com

Documentation/devicetree/bindings/thermal/mediatek,lvts-thermal.yaml

@@ -94,12 +94,23 @@ allOf:
         nvmem-cell-names:
           minItems: 2
 
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              enum:
+                - mediatek,mt8196-lvts-ap
+                - mediatek,mt8196-lvts-mcu
+    then:
+      required:
+        - resets
+
 required:
   - compatible
   - reg
   - interrupts
   - clocks
-  - resets
   - nvmem-cells
   - nvmem-cell-names