dm: add missing includes

lists.c / root.c do not include their own header and they
could potentially implement a different function. Therefore
actually include the headers.

cc: sjg@chromium.org
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Acked-by: Simon Glass <sjg@chromium.org>

drivers/core/lists.c

@@ -11,6 +11,7 @@
 #include <errno.h>
 #include <dm/device.h>
 #include <dm/device-internal.h>
+#include <dm/lists.h>
 #include <dm/platdata.h>
 #include <dm/uclass.h>
 #include <dm/util.h>

drivers/core/root.c

@@ -15,6 +15,7 @@
 #include <dm/device-internal.h>
 #include <dm/lists.h>
 #include <dm/platdata.h>
+#include <dm/root.h>
 #include <dm/uclass.h>
 #include <dm/util.h>
 #include <linux/list.h>