ARM: dts: meson8b: odroidc1: add stdout-path property

To use the "earlycon" kernel command line parameter (without arguments)
we need a stdout-path property under the /chosen node. Add this to make
it easier to spot errors early in the boot process when looking for
them.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm/boot/dts/meson8b-odroidc1.dts

@@ -57,6 +57,10 @@ aliases {
 		mmc0 = &sd_card_slot;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	memory {
 		reg = <0x40000000 0x40000000>;
 	};