dt-bindings: arm: bcm: Convert Stingray to YAML

Update the Broadcom Stingray SoC binding document for boards/SoCs to use
YAML. Verified with dt_binding_check and dtbs_check.

Acked-by: Scott Branden <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Signed-off-by: Florian Fainelli <[e-mail]>

Documentation/devicetree/bindings/arm/bcm/brcm,stingray.txt

···
-Broadcom Stingray device tree bindings
-------------------------------------------------
-
-Boards with Stingray shall have the following properties:
-
-Required root node property:
-
-Stingray Combo SVK board
-compatible = "brcm,bcm958742k", "brcm,stingray";
-
-Stingray SST100 board
-compatible = "brcm,bcm958742t", "brcm,stingray";

Documentation/devicetree/bindings/arm/bcm/brcm,stingray.yaml

···
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/bcm/brcm,stingray.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Stingray device tree bindings
+
+maintainers:
+  - Ray Jui <[e-mail]>
+  - Scott Branden <[e-mail]>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    items:
+      - enum:
+        - brcm,bcm958742k
+        - brcm,bcm958742t
+        - brcm,bcm958802a802x
+      - const: brcm,stingray
+
+...