dt-bindings: arm: Convert Realtek board/soc bindings to json-schema

Realtek platforms device tree bindings

--------------------------------------

RTD1295 SoC

===========

Required root node properties:

 - compatible :  must contain "realtek,rtd1295"

Root node property compatible must contain, depending on board:

 - MeLE V9: "mele,v9"

 - ProBox2 AVA: "probox2,ava"

 - Zidoo X9S: "zidoo,x9s"

Example:

    compatible = "zidoo,x9s", "realtek,rtd1295";

# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/arm/realtek.yaml#

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

title: Realtek platforms device tree bindings

maintainers:

  - Andreas Färber <afaerber@suse.de>

properties:

  $nodename:

    const: '/'

  compatible:

    # RTD1295 SoC based boards

    items:

      - enum:

          - mele,v9

          - probox2,ava

          - zidoo,x9s

      - const: realtek,rtd1295

...

L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

S:	Maintained

F:	arch/arm64/boot/dts/realtek/

F:	Documentation/devicetree/bindings/arm/realtek.txt

F:	Documentation/devicetree/bindings/arm/realtek.yaml

ARM/RENESAS ARM64 ARCHITECTURE

M:	Simon Horman <horms@verge.net.au>