dt-bindings: display: Convert bananapi,s070wv20-ct16 panel to DT schema

Convert the bananapi,s070wv20-ct16 panel binding to DT schema.

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190705164221.4462-5-robh@kernel.org

Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt

-Banana Pi 7" (S070WV20-CT16) TFT LCD Panel
-
-Required properties:
-- compatible: should be "bananapi,s070wv20-ct16"
-- power-supply: see ./panel-common.txt
-
-Optional properties:
-- enable-gpios: see ./simple-panel.txt
-- backlight: see ./simple-panel.txt
-
-This binding is compatible with the simple-panel binding, which is specified
-in ./simple-panel.txt.

Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/bananapi,s070wv20-ct16.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Banana Pi 7" (S070WV20-CT16) TFT LCD Panel
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Thierry Reding <thierry.reding@gmail.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: bananapi,s070wv20-ct16
+
+  power-supply: true
+  backlight: true
+  enable-gpios: true
+  port: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - power-supply
+
+...