dt-bindings: mtd: Convert imx nand to json-schema

* Freescale's mxc_nand

Required properties:

- compatible: "fsl,imxXX-nand"

- reg: address range of the nfc block

- interrupts: irq to be used

- nand-bus-width: see nand-controller.yaml

- nand-ecc-mode: see nand-controller.yaml

- nand-on-flash-bbt: see nand-controller.yaml

Example:

	nand@d8000000 {

		compatible = "fsl,imx27-nand";

		reg = <0xd8000000 0x1000>;

		interrupts = <29>;

		nand-bus-width = <8>;

		nand-ecc-mode = "hw";

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/mtd/mxc-nand.yaml#

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

title:  Freescale's mxc_nand binding

maintainers:

  - Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

allOf:

  - $ref: "nand-controller.yaml"

properties:

  compatible:

    const: fsl,imx27-nand

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

required:

  - compatible

  - reg

  - interrupts

unevaluatedProperties: false

examples:

  - |

    nand-controller@d8000000 {

        #address-cells = <1>;

        #size-cells = <0>;

        compatible = "fsl,imx27-nand";

        reg = <0xd8000000 0x1000>;

        interrupts = <29>;

        nand-bus-width = <8>;

        nand-ecc-mode = "hw";

    };