at91: vinco: Enable DM

Enable Driver model for AT91 Vinco boards.

Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

arch/arm/mach-at91/Kconfig

@@ -237,6 +237,7 @@ config TARGET_VINCO
 	bool "Support VINCO"
 	select SAMA5D4
 	select SUPPORT_SPL
+	select DM
 
 config TARGET_WB45N
 	bool "Support Laird WB45N"