dm: include <linker_lists.h> from platdata.h and uclass.h

The header files include/dm/platdata.h and include/dm/uclass.h
use ll_entry_declare(); therefore they depend on
include/linker_lists.h.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NSimon Glass <sjg@chromium.org>

include/dm/platdata.h

@@ -11,6 +11,8 @@
 #ifndef _DM_PLATDATA_H
 #define _DM_PLATDATA_H
 
+#include <linker_lists.h>
+
 /**
  * struct driver_info - Information required to instantiate a device
  *

include/dm/uclass.h

@@ -11,6 +11,7 @@
 #define _DM_UCLASS_H
 
 #include <dm/uclass-id.h>
+#include <linker_lists.h>
 #include <linux/list.h>
 
 /**