Remove kharris@nexus-tech.net from MAINTAINERS

Mail to kharris@nexus-tech.net bounces because the user doesn't exist
anymore. You can't be a maintainer without a valid e-mail address, so
move all boards that used to be maintained by Kyle Harris to the
"orphaned" list.

Currently, only PowerPC has a list of orphaned boards, so this patch
creates one for ARM as well.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

MAINTAINERS

@@ -492,12 +492,6 @@ Kshitij Gupta <kshitij@ti.com>
 	omap1510inn		ARM925T
 	omap1610inn		ARM926EJS
 
-Kyle Harris <kharris@nexus-tech.net>
-
-	lubbock			xscale
-	cradle			xscale
-	ixdp425			xscale
-
 Gary Jennejohn <gj@denx.de>
 
 	smdk2400		ARM920T
@@ -591,6 +585,14 @@ Michael Schwingen <michael@schwingen.org>
 	actux3			xscale
 	actux4			xscale
 
+-------------------------------------------------------------------------
+
+Unknown / orphaned boards:
+
+	cradle			xscale
+	ixdp425			xscale
+	lubbock			xscale
+
 #########################################################################
 # x86 Systems:								#
 #									#