dt-bindings: interrupt-controller: Convert marvell,ap806-sei to DT schema

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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/marvell,ap806-sei.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell SEI (System Error Interrupt) Controller
+
+maintainers:
+  - Miquel Raynal <[email protected]>
+
+description: >
+  Marvell SEI (System Error Interrupt) controller is an interrupt aggregator. It
+  receives interrupts from several sources and aggregates them to a single
+  interrupt line (an SPI) on the parent interrupt controller.
+
+  This interrupt controller can handle up to 64 SEIs, a set comes from the AP
+  and is wired while a second set comes from the CPs by the mean of MSIs.
+
+properties:
+  compatible:
+    const: marvell,ap806-sei
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  '#interrupt-cells':
+    const: 1
+
+  interrupt-controller: true
+
+  msi-controller: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#interrupt-cells'
+  - interrupt-controller
+  - msi-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    interrupt-controller@3f0200 {
+        compatible = "marvell,ap806-sei";
+        reg = <0x3f0200 0x40>;
+        interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+        #interrupt-cells = <1>;
+        interrupt-controller;
+        msi-controller;
+    };

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-Marvell SEI (System Error Interrupt) Controller
------------------------------------------------
-
-Marvell SEI (System Error Interrupt) controller is an interrupt
-aggregator. It receives interrupts from several sources and aggregates
-them to a single interrupt line (an SPI) on the parent interrupt
-controller.
-
-This interrupt controller can handle up to 64 SEIs, a set comes from the
-AP and is wired while a second set comes from the CPs by the mean of
-MSIs.
-
-Required properties:
-
-- compatible: should be one of:
-              * "marvell,ap806-sei"
-- reg: SEI registers location and length.
-- interrupts: identifies the parent IRQ that will be triggered.
-- #interrupt-cells: number of cells to define an SEI wired interrupt
-                    coming from the AP, should be 1. The cell is the IRQ
-                    number.
-- interrupt-controller: identifies the node as an interrupt controller
-                        for AP interrupts.
-- msi-controller: identifies the node as an MSI controller for the CPs
-                  interrupts.
-
-Example:
-
-        sei: interrupt-controller@3f0200 {
-                compatible = "marvell,ap806-sei";
-                reg = <0x3f0200 0x40>;
-                interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
-                #interrupt-cells = <1>;
-                interrupt-controller;
-                msi-controller;
-        };