dt-bindings: thermal: Convert amazon,al-thermal to DT schema

Convert amazon,al-thermal binding to DT schema format. It's a
straight-forward conversion.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251013215820.783272-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Author: robherring

Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/amazon,al-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amazon Annapurna Labs Thermal Sensor
+
+maintainers:
+  - Talel Shenhar <talel@amazon.com>
+
+description:
+  Simple thermal device that allows temperature reading by a single MMIO
+  transaction.
+
+properties:
+  compatible:
+    items:
+      - const: amazon,al-thermal
+
+  reg:
+    maxItems: 1
+
+  '#thermal-sensor-cells':
+    const: 1
+
+additionalProperties: false
+
+examples:
+  - |
+    thermal: thermal@5002860 {
+        compatible = "amazon,al-thermal";
+        reg = <0x05002860 0x1>;
+        #thermal-sensor-cells = <0x1>;
+    };
+
+    thermal-zones {
+        z0-thermal {
+            polling-delay-passive = <250>;
+            polling-delay = <1000>;
+            thermal-sensors = <&thermal 0>;
+            trips {
+                critical {
+                    temperature = <105000>;
+                    hysteresis = <2000>;
+                    type = "critical";
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/thermal/amazon,al-thermal.yaml

@@ -973,7 +973,7 @@ F:	drivers/edac/al_mc_edac.c
 AMAZON ANNAPURNA LABS THERMAL MMIO DRIVER
 M:	Talel Shenhar <talel@amazon.com>
 S:	Maintained
-F:	Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt
+F:	Documentation/devicetree/bindings/thermal/amazon,al-thermal.yaml
 F:	drivers/thermal/thermal_mmio.c
 
 AMAZON ETHERNET DRIVERS