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/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c
index 7f20ef1..195419e 100644
--- a/drivers/mmc/uniphier-sd.c
+++ b/drivers/mmc/uniphier-sd.c
@@ -9,7 +9,7 @@
 #include <clk.h>
 #include <fdtdec.h>
 #include <mmc.h>
-#include <dm/device.h>
+#include <dm.h>
 #include <linux/compat.h>
 #include <linux/io.h>
 #include <linux/sizes.h>