mac68k: mailing list addresss

The mail service for the mac.linux-m68k.org domain is defunct.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -2446,7 +2446,7 @@ M68K ON APPLE MACINTOSH
 P:	Joshua Thompson
 M:	funaho@jurai.org
 W:	http://www.mac.linux-m68k.org/
-L:	linux-mac68k@mac.linux-m68k.org
+L:	linux-m68k@lists.linux-m68k.org
 S:	Maintained
 
 M68K ON HP9000/300