[PATCH] MAINTAINERS update for SN support

From:  Jesse Barnes <jbarnes@sgi.com>

  Quick add to the maintainers file for SN (aka Altix 3000) support in
  the kernel.

MAINTAINERS

@@ -838,6 +838,13 @@ L:	linux-ia64@linuxia64.org
 W:	http://www.linuxia64.org/
 S:	Maintained
 
+SN-IA64 (Itanium) SUB-PLATFORM
+P:	John Hesterberg
+M:	jh@sgi.com
+L:	linux-ia64@linuxia64.org
+W:	http://www.sgi.com/altix
+S:	Maintained
+
 IBM MCA SCSI SUBSYSTEM DRIVER
 P:	Michael Lang
 M:	langa2@kph.uni-mainz.de