ext4: fix typo in setup_new_flex_group_blocks

grop -> group
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230826174712.4059355-6-shikemeng@huaweicloud.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/resize.c

@@ -609,7 +609,7 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
 		}
 
 handle_itb:
-		/* Initialize group tables of the grop @group */
+		/* Initialize group tables of the group @group */
 		if (!(bg_flags[i] & EXT4_BG_INODE_ZEROED))
 			goto handle_bb;