mtd/nand/sh_flctl: Move function mtd_to_flctl to fix build failure

This patch fixes a build failure[1] by simply moving the function mtd_to_flctl
beneath the definition of sh_flctl which it uses.

BF introduced by patch
'mtd/nand/sh_flctl: Replace the dangerous mtd_to_flctl macro' (67026418)
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

include/linux/mtd/sh_flctl.h

@@ -93,11 +93,6 @@
 #define INIT_FL4ECCRESULT_VAL	0x03FF03FF
 #define LOOP_TIMEOUT_MAX	0x00010000
 
-static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo)
-{
-	return container_of(mtdinfo, struct sh_flctl, mtd);
-}
-
 struct sh_flctl {
 	struct mtd_info		mtd;
 	struct nand_chip	chip;
@@ -128,4 +123,9 @@ struct sh_flctl_platform_data {
 	unsigned has_hwecc:1;
 };
 
+static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo)
+{
+	return container_of(mtdinfo, struct sh_flctl, mtd);
+}
+
 #endif	/* __SH_FLCTL_H__ */