dt-bindings: ata: ahci-da850: Convert to dtschema

Convert the ahci-da850 bindings to DT schema.
Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

Documentation/devicetree/bindings/ata/ahci-da850.txt

-Device tree binding for the TI DA850 AHCI SATA Controller
----------------------------------------------------------
-
-Required properties:
-  - compatible: must be "ti,da850-ahci"
-  - reg: physical base addresses and sizes of the two register regions
-         used by the controller: the register map as defined by the
-         AHCI 1.1 standard and the Power Down Control Register (PWRDN)
-         for enabling/disabling the SATA clock receiver
-  - interrupts: interrupt specifier (refer to the interrupt binding)
-
-Example:
-
-	sata: sata@218000 {
-		compatible = "ti,da850-ahci";
-		reg = <0x218000 0x2000>, <0x22c018 0x4>;
-		interrupts = <67>;
-	};

Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ti,da850-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DA850 AHCI SATA Controller
+
+maintainers:
+  - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+  compatible:
+    const: ti,da850-ahci
+
+  reg:
+    items:
+      - description: Address and size of the register map as defined by the AHCI 1.1 standard.
+      - description:
+          Address and size of Power Down Control Register (PWRDN) for enabling/disabling the SATA clock
+          receiver.
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    sata@218000 {
+        compatible = "ti,da850-ahci";
+        reg = <0x218000 0x2000>, <0x22c018 0x4>;
+        interrupts = <67>;
+    };