m68k: change m68knommu maintainer email address

Change my email address in the "UCLINUX (M68KNOMMU and COLDFIRE)" entry
from gerg@uclinux.org to gerg@linux-m68k.org. I intend using that for
m68k (and uclinux) specific work from now on.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>

MAINTAINERS

@@ -11389,7 +11389,8 @@ F:	Documentation/filesystems/ubifs.txt
 F:	fs/ubifs/
 
 UCLINUX (M68KNOMMU AND COLDFIRE)
-M:	Greg Ungerer <gerg@uclinux.org>
+M:	Greg Ungerer <gerg@linux-m68k.org>
+W:	http://www.linux-m68k.org/
 W:	http://www.uclinux.org/
 L:	linux-m68k@lists.linux-m68k.org
 L:	uclinux-dev@uclinux.org  (subscribers-only)