at91: ma5d4evk: Enable DM

Enable Driver model for AT91 ma5d4evk boards.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 17d60d0..4dfddcc 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -200,6 +200,7 @@
 	bool "Aries MA5D4EVK Evaluation Kit"
 	select SAMA5D4
 	select SUPPORT_SPL
+	select DM
 
 config TARGET_MEESC
 	bool "Support meesc"