microblaze: Enable DM by default

Enable DM for the whole architecture.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index a730b72..604f681 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -12,6 +12,7 @@
 	bool "Support microblaze-generic"
 	select SUPPORT_SPL
 	select OF_CONTROL
+	select DM
 
 endchoice