dm: Change CMD_DM enabling

CMD_DM is used for debug purpose and it shouldn't be enabled by default
via Kconfig. Unfortunately this is in the tree for quite a long time
that's why solution is to use imply DM for all targets which are
enabling DM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 1a56957..69856c8 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -78,6 +78,7 @@
 	select DM
 	select DM_GPIO
 	select DM_SERIAL
+	imply CMD_DM
 
 config TARGET_GURNARD
 	bool "Support gurnard"
@@ -89,6 +90,7 @@
 	select DM_SERIAL
 	select DM_SPI
 	select SPI
+	imply CMD_DM
 
 config TARGET_AT91SAM9261EK
 	bool "Atmel at91sam9261 reference board"
@@ -209,6 +211,7 @@
 	select DM_GPIO
 	select DM_SERIAL
 	select SUPPORT_SPL
+	imply CMD_DM
 
 config TARGET_TAURUS
 	bool "Support taurus"
@@ -220,6 +223,7 @@
 	select DM_SPI
 	select SPI
 	select SUPPORT_SPL
+	imply CMD_DM
 
 config TARGET_SMARTWEB
 	bool "Support smartweb"
@@ -229,6 +233,7 @@
 	select DM_GPIO
 	select DM_SERIAL
 	select SUPPORT_SPL
+	imply CMD_DM
 
 config TARGET_VINCO
 	bool "Support VINCO"
@@ -237,6 +242,7 @@
 	select SAMA5D4
 	select SPI
 	select SUPPORT_SPL
+	imply CMD_DM
 
 config TARGET_WB45N
 	bool "Support Laird WB45N"