dt-bindings: watchdog: migrate mt7621 text bindings to YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/watchdog/mediatek,mt7621-wdt.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Ralink Watchdog Timers

maintainers:

  - Sergio Paracuellos <sergio.paracuellos@gmail.com>

allOf:

  - $ref: watchdog.yaml#

properties:

  compatible:

    const: mediatek,mt7621-wdt

  reg:

    maxItems: 1

required:

  - compatible

  - reg

additionalProperties: false

examples:

  - |

    watchdog@100 {

      compatible = "mediatek,mt7621-wdt";

      reg = <0x100 0x100>;

    };

Ralink Watchdog Timers

Required properties:

- compatible: must be "mediatek,mt7621-wdt"

- reg: physical base address of the controller and length of the register range

Example:

	watchdog@100 {

		compatible = "mediatek,mt7621-wdt";

		reg = <0x100 0x10>;

	};