dm: Use dm.h header when driver mode is used

This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
index 70c90ba..788cfab 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
@@ -5,7 +5,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <dm/device.h>
+#include <dm.h>
 #include <dm/pinctrl.h>
 
 #include "pinctrl-uniphier.h"