86xx: XPedite5170 board support

Initial support for Extreme Engineering Solutions XPedite5170 -
a MPC8640-based 3U VPX single board computer with a PMC/XMC
site.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/Makefile b/Makefile
index bcc81c9..191768c 100644
--- a/Makefile
+++ b/Makefile
@@ -2580,6 +2580,9 @@
 sbc8641d_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc mpc86xx sbc8641d
 
+XPEDITE5170_config:	unconfig
+	@$(MKCONFIG) $(@:_config=) ppc mpc86xx xpedite5170 xes
+
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 ## 74xx/7xx Systems
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