xfs: don't ASSERT on corrupt ftype

xfs_dir3_data_get_ftype() gets the file type off disk, but ASSERTs
if it's invalid:

ASSERT(type < XFS_DIR3_FT_MAX);

We shouldn't ASSERT on bad values read from disk. V3 dirs are
CRC-protected, but V2 dirs + ftype are not.

Signed-off-by: Eric Sandeen <[e-mail]>
Reviewed-by: Dave Chinner <[e-mail]>
Signed-off-by: Dave Chinner <[e-mail]>

fs/xfs/libxfs/xfs_da_format.c

···
 {
 	__uint8_t	ftype = dep->name[dep->namelen];
 
-	ASSERT(ftype < XFS_DIR3_FT_MAX);
 	if (ftype >= XFS_DIR3_FT_MAX)
 		return XFS_DIR3_FT_UNKNOWN;
 	return ftype;