ext4: move ext4_ind_migrate() into migrate.c

Move ext4_ind_migrate() into migrate.c file since it makes much more
sense and ext4_ext_migrate() is there as well.

Also fix tiny style problem - add spaces around "=" in "i=0".

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 12b5604..75b2326 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2136,6 +2136,7 @@
 
 /* migrate.c */
 extern int ext4_ext_migrate(struct inode *);
+extern int ext4_ind_migrate(struct inode *inode);
 
 /* namei.c */
 extern int ext4_dirent_csum_verify(struct inode *inode,
@@ -2625,7 +2626,6 @@
 extern int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk);
 extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 			__u64 start, __u64 len);
-extern int ext4_ind_migrate(struct inode *inode);
 
 
 /* move_extent.c */