dt-bindings: phy: Convert Marvell MVEBU PHYs to DT schema

Convert the Marvell Armada-375 USB and MVEBU SATA PHY binding to DT
schema format. It's a straight forward conversion.

Signed-off-by: Rob Herring (Arm) <[e-mail]>
Reviewed-by: Andrew Lunn <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

Documentation/devicetree/bindings/phy/marvell,armada-375-usb-cluster.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/marvell,armada-375-usb-cluster.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Armada 375 USB Cluster
+
+maintainers:
+  - Andrew Lunn <[e-mail]>
+  - Gregory Clement <[e-mail]>
+
+description:
+  Control register for the Armada 375 USB cluster, managing USB2 and USB3 features.
+
+properties:
+  compatible:
+    const: marvell,armada-375-usb-cluster
+
+  reg:
+    maxItems: 1
+
+  '#phy-cells':
+    description: Number of PHY cells in specifier. 1 for USB2, 2 for USB3.
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    usbcluster: usb-cluster@18400 {
+        compatible = "marvell,armada-375-usb-cluster";
+        reg = <0x18400 0x4>;
+        #phy-cells = <1>;
+    };

Documentation/devicetree/bindings/phy/marvell,mvebu-sata-phy.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/marvell,mvebu-sata-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MVEBU SATA PHY
+
+maintainers:
+  - Andrew Lunn <[e-mail]>
+  - Gregory Clement <[e-mail]>
+
+properties:
+  compatible:
+    const: marvell,mvebu-sata-phy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: sata
+
+  '#phy-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    sata-phy@84000 {
+        compatible = "marvell,mvebu-sata-phy";
+        reg = <0x84000 0x0334>;
+        clocks = <&gate_clk 15>;
+        clock-names = "sata";
+        #phy-cells = <0>;
+    };

Documentation/devicetree/bindings/phy/phy-mvebu.txt

···
-* Marvell MVEBU SATA PHY
-
-Power control for the SATA phy found on Marvell MVEBU SoCs.
-
-This document extends the binding described in phy-bindings.txt
-
-Required properties :
-
- - reg		   : Offset and length of the register set for the SATA device
- - compatible	   : Should be "marvell,mvebu-sata-phy"
- - clocks	   : phandle of clock and specifier that supplies the device
- - clock-names	   : Should be "sata"
-
-Example:
-		sata-phy@84000 {
-			compatible = "marvell,mvebu-sata-phy";
-			reg = <0x84000 0x0334>;
-			clocks = <&gate_clk 15>;
-			clock-names = "sata";
-			#phy-cells = <0>;
-		};
-
-Armada 375 USB cluster
-----------------------
-
-Armada 375 comes with an USB2 host and device controller and an USB3
-controller. The USB cluster control register allows to manage common
-features of both USB controllers.
-
-Required properties:
-
-- compatible: "marvell,armada-375-usb-cluster"
-- reg: Should contain usb cluster register location and length.
-- #phy-cells : from the generic phy bindings, must be 1. Possible
-values are 1 (USB2), 2 (USB3).
-
-Example:
-		usbcluster: usb-cluster@18400 {
-			compatible = "marvell,armada-375-usb-cluster";
-			reg = <0x18400 0x4>;
-			#phy-cells = <1>
-		};