dt-bindings: power: supply: tps65217: Convert to DT schema format

Convert the binding to DT schema format.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/power/supply/tps65217-charger.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/tps65217-charger.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: TPS65217 Charger
+
+maintainers:
+  - Sebastian Reichel <sre@kernel.org>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    const: ti,tps65217-charger
+
+  interrupts:
+    minItems: 2
+    maxItems: 2
+
+  interrupt-names:
+    items:
+      - const: USB
+      - const: AC
+      
+required:
+  - compatible
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    pmic {
+      charger {
+        compatible = "ti,tps65217-charger";
+        interrupts = <0>, <1>;
+        interrupt-names = "USB", "AC";
+      };
+    };

Documentation/devicetree/bindings/power/supply/tps65217_charger.txt

-TPS65217 Charger
-
-Required Properties:
--compatible: "ti,tps65217-charger"
--interrupts: TPS65217 interrupt numbers for the AC and USB charger input change.
-             Should be <0> for the USB charger and <1> for the AC adapter.
--interrupt-names: Should be "USB" and "AC"
-
-This node is a subnode of the tps65217 PMIC.
-
-Example:
-
-	tps65217-charger {
-		compatible = "ti,tps65217-charger";
-		interrupts = <0>, <1>;
-		interrupt-names = "USB", "AC";
-	};