lantiq: add missing model names

Signed-off-by: Mathias Kresin <[email protected]>

target/linux/lantiq/dts/EASY50810.dts

@@ -4,6 +4,7 @@
 
 / {
 	compatible = "lantiq,easy50810", "lantiq,xway", "lantiq,ar9";
+	model = "Lantiq EASY50810";
 
 	chosen {
 		bootargs = "console=ttyLTQ0,115200";