Prevent double decoding of storage options

[NO NEW TESTS NEEDED] see containers#11991

Signed-off-by: Riyad Preukschas <riyad@informatik.uni-bremen.de>

libpod/container_internal.go

@@ -447,17 +447,8 @@ func (c *Container) setupStorage(ctx context.Context) error {
 		LabelOpts: c.config.LabelOpts,
 	}
 
-	nopts := len(c.config.StorageOpts)
-	if nopts > 0 {
-		options.StorageOpt = make(map[string]string, nopts)
-		for _, opt := range c.config.StorageOpts {
-			split2 := strings.SplitN(opt, "=", 2)
-			if len(split2) > 2 {
-				return errors.Wrapf(define.ErrInvalidArg, "invalid storage options %q for %s", opt, c.ID())
-			}
-			options.StorageOpt[split2[0]] = split2[1]
-		}
-	}
+	options.StorageOpt = c.config.StorageOpts
+
 	if c.restoreFromCheckpoint && c.config.ProcessLabel != "" && c.config.MountLabel != "" {
 		// If restoring from a checkpoint, the root file-system needs
 		// to be mounted with the same SELinux labels as it was mounted