libblkid: fix detection of dm-integrity superblock version

Kernel 5.2 can use superblock version 3 for dm-integrity.
Let's remove the explicit version check to be compatible
with future extensions.

Signed-off-by: Milan Broz <gmazyland@gmail.com>

libblkid/src/superblocks/lvm.c

@@ -193,7 +193,7 @@ static int probe_integrity(blkid_probe pr, const struct blkid_idmag *mag)
 	if (sb == NULL)
 		return errno ? -errno : 1;
 
-	if (sb->version !=1 && sb->version != 2)
+	if (!sb->version)
 		return 1;
 
 	blkid_probe_sprintf_version(pr, "%u", sb->version);