[U-Boot] [PATCH] ARM: dts: ethernut5: Fix the build warning

[Wenyou Yang]

Fix the building warning as below:
---8<----
Warning (reg_format): "reg" property in /i2c-gpio-0/pcf8563 at 50 has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
Warning (avoid_default_addr_size): Relying on default #address-cells value for /i2c-gpio-0/pcf8563 at 50
Warning (avoid_default_addr_size): Relying on default #size-cells value for /i2c-gpio-0/pcf8563 at 50
--->8----

Signed-off-by: Wenyou Yang <wenyou.yang at microchip.com>
---

 arch/arm/dts/ethernut5.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/dts/ethernut5.dts b/arch/arm/dts/ethernut5.dts
index e07715225f..5c24deaf4b 100644
--- a/arch/arm/dts/ethernut5.dts
+++ b/arch/arm/dts/ethernut5.dts
@@ -84,6 +84,8 @@
 	};
 
 	i2c-gpio-0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
 		status = "okay";
 
 		pcf8563 at 50 {
-- 
2.13.0