Call dynamic VS content creation unconditionally

Irrespective of any error on the Volume Snapshot
object, initiate dynamic VolumeSnapshotContent object
creation. If any required parameters are not found, (e.g. missing
VS class), the VS content object creation would fail gracefully.

pkg/common-controller/framework_test.go

@@ -1145,6 +1145,14 @@ func testUpdateSnapshotClass(ctrl *csiSnapshotCommonController, reactor *snapsho
 	return err
 }
 
+func testNewSnapshotContentCreation(ctrl *csiSnapshotCommonController, reactor *snapshotReactor, test controllerTest) error {
+	if err := ctrl.syncUnreadySnapshot(test.initialSnapshots[0]); err != nil {
+		return fmt.Errorf("syncUnreadySnapshot failed: %v", err)
+	}
+
+	return nil
+}
+
 var (
 	classEmpty         string
 	classGold          = "gold"