uboot-mtk-20250711: mtd_layout: remove reference to common.h

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

uboot-mtk-20250711/board/mediatek/common/mtd_helper.c

@@ -8,6 +8,7 @@
  */
 
 #include <env.h>
+#include <exports.h>
 #include <errno.h>
 #include <image.h>
 #include <memalign.h>

uboot-mtk-20250711/board/mediatek/common/mtd_layout.c

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0+
 
-#include <common.h>
 #include <command.h>
 #include <env.h>
 #include <mtd_node.h>

uboot-mtk-20250711/cmd/showlayout.c

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0+
 
-#include <common.h>
 #include <command.h>
 #include <dm/ofnode.h>