MAINTAINERS: orphan DMFE, move Tobias Ringstrom to CREDITS

Tobias's email bounces and he hasn't submitted or acked a patch in git
history.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 7350cef..59cd2f5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2034,9 +2034,8 @@
 F:	net/ax25/sysctl_net_ax25.c
 
 DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
-M:	Tobias Ringstrom <tori@unhappy.mine.nu>
 L:	netdev@vger.kernel.org
-S:	Maintained
+S:	Orphan
 F:	Documentation/networking/dmfe.txt
 F:	drivers/net/tulip/dmfe.c