maintainers: linux-omap list is subscribers only

You are not allowed to post to this mailing list, and your message has been
automatically rejected.  If you think that your messages are being rejected
in error, contact the mailing list owner at
linux-omap-open-source-owner@linux.omap.com.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -3709,7 +3709,7 @@ S:      Maintained
 
 TI OMAP MMC INTERFACE DRIVER
 P:	Carlos Aguiar, Anderson Briglia and Syed Khasim
-M:	linux-omap-open-source@linux.omap.com 
+M:	linux-omap-open-source@linux.omap.com (subscribers only)
 W:	http://linux.omap.com
 W:	http://www.muru.com/linux/omap/
 S:	Maintained