arm: dts: dra7-evm: add tick-timer to chosen node

Specify timer2 to be used as tick-timer in chosen node.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/arm/dts/dra7-evm.dts

@@ -16,6 +16,7 @@
 
 	chosen {
 		stdout-path = &uart1;
+		tick-timer = &timer2;
 	};
 
 	memory {