ARM: dts: mt6589-aquaris5: Add boot argument earlyprintk

Add boot argument for earlyprintk to the aquaris5 device tree file.
Signed-off-by: NMatthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

arch/arm/boot/dts/mt6589-aquaris5.dts

@@ -19,6 +19,10 @@
 / {
 	model = "bq Aquaris5";
 
+	chosen {
+		bootargs = "earlyprintk";
+	};
+
 	memory {
 		reg = <0x80000000 0x40000000>;
 	};