dt-bindings: fix warnings in xinpeng,xpp055c272.yaml

[Sam Ravnborg]

The reg property in the example caused following warnings:

xinpeng,xpp055c272.example.dts:20.17-27: Warning (reg_format): /example-0/dsi at ff450000/panel at 0:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)

xinpeng,xpp055c272.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
xinpeng,xpp055c272.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
xinpeng,xpp055c272.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
xinpeng,xpp055c272.example.dts:18.21-24.15: Warning (avoid_default_addr_size): /example-0/dsi at ff450000/panel at 0: Relying on default #address-cells value
xinpeng,xpp055c272.example.dts:18.21-24.15: Warning (avoid_default_addr_size): /example-0/dsi at ff450000/panel at 0: Relying on default #size-cells value

Added #address-cells and #size-cells to silence the warning.

Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
Cc: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
Cc: Maxime Ripard <mripard at kernel.org>
Cc: Rob Herring <robh at kernel.org>
Cc: devicetree at vger.kernel.org
---

I forgot to push this fixed while applying the patch.

	Sam

 .../devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
index 378cf9e2549d..186e5e1c8fa3 100644
--- a/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
+++ b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
@@ -35,6 +35,8 @@ additionalProperties: false
 examples:
   - |
     dsi at ff450000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
         panel at 0 {
             compatible = "xinpeng,xpp055c272";
             reg = <0>;
-- 
2.20.1