dt-bindings: arm: hisilicon: convert hisilicon,hip04-bootwrapper bindings to json-schema

Convert the Hisilicon Bootwrapper boot method binding to DT schema format
using json-schema.

The property boot-method contains two groups of physical address range
information: bootwrapper and relocation. The "uint32-array" type is not
suitable for it, because the field "address" and "size" may occupy one or
two cells respectively. Use "minItems: 1" and "maxItems: 2" to allow it
can be written in "<addr size addr size>" or "<addr size>, <addr size>"
format.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20200929141454.2312-15-thunder.leizhen@huawei.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/arm/hisilicon/controller/hip04-bootwrapper.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/hisilicon/controller/hip04-bootwrapper.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bootwrapper boot method
+
+maintainers:
+  - Wei Xu <xuwei5@hisilicon.com>
+
+description: Bootwrapper boot method (software protocol on SMP)
+
+properties:
+  compatible:
+    items:
+      - const: hisilicon,hip04-bootwrapper
+
+  boot-method:
+    description: |
+      Address and size of boot method.
+      [0]: bootwrapper physical address
+      [1]: bootwrapper size
+      [2]: relocation physical address
+      [3]: relocation size
+    minItems: 1
+    maxItems: 2
+
+required:
+  - compatible
+  - boot-method
+
+additionalProperties: false
+...

Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hip04-bootwrapper.txt

-Bootwrapper boot method (software protocol on SMP):
-
-Required Properties:
-- compatible: "hisilicon,hip04-bootwrapper";
-- boot-method: Address and size of boot method.
-  [0]: bootwrapper physical address
-  [1]: bootwrapper size
-  [2]: relocation physical address
-  [3]: relocation size