update c/image and c/storage to latest

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

vendor/github.com/containers/storage/drivers/vfs/driver.go

@@ -226,15 +226,12 @@ func (d *Driver) Remove(id string) error {
 // Get returns the directory for the given id.
 func (d *Driver) Get(id string, options graphdriver.MountOpts) (_ string, retErr error) {
 	dir := d.dir(id)
-	switch len(options.Options) {
-	case 0:
-	case 1:
-		if options.Options[0] == "ro" {
+
+	for _, opt := range options.Options {
+		if opt == "ro" {
 			// ignore "ro" option
-			break
+			continue
 		}
-		fallthrough
-	default:
 		return "", fmt.Errorf("vfs driver does not support mount options")
 	}
 	if st, err := os.Stat(dir); err != nil {