sh: Update mailing list info.

DaveM has provided a vger list, update MAINTAINERS to reflect this.

Also, rip out the sh64 entry (as this can just be rolled in to the
general sh case), and add the git path.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

MAINTAINERS

@@ -3636,18 +3636,12 @@ M:	laredo@gnu.org
 W:	http://www.stradis.com/
 S:	Maintained
 
-SUPERH (sh)
+SUPERH
 P:	Paul Mundt
 M:	lethal@linux-sh.org
-L:	linuxsh-dev@lists.sourceforge.net (subscribers-only)
-W:	http://www.linux-sh.org
-S:	Maintained
-
-SUPERH64 (sh64)
-P:	Paul Mundt
-M:	lethal@linux-sh.org
-L:	linuxsh-shmedia-dev@lists.sourceforge.net
+L:	linux-sh@vger.kernel.org
 W:	http://www.linux-sh.org
+T:	git kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.git
 S:	Maintained
 
 SUN3/3X