update David Miller's old email address

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index c618eed..ba40325 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle ralf@gnu.org
  * Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2002 MIPS Technologies, Inc.  All rights reserved.