arm: dts: dra7-evm: add chosen node to specify serial console device

Introduce chosen node and specify uart0 to be used as serial console.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/dra7-evm.dts

@@ -14,6 +14,10 @@
 	model = "TI DRA742";
 	compatible = "ti,dra7-evm", "ti,dra742", "ti,dra74", "ti,dra7";
 
+	chosen {
+		stdout-path = &uart1;
+	};
+
 	memory {
 		device_type = "memory";
 		reg = <0x80000000 0x60000000>; /* 1536 MB */