tomoyo: version bump to 2.2.0.

Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/file.c

@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */