ARMV7: Versatile Express Coretile CortexA9x4 support

Adds support for the ARM quad-core Cortex-A9 processor

This system includes a motherboard(Versatile Express), daughterboard
(Coretile), and SOC(Cortex-A9 quad core).  The serial port, ethernet,
and flash systems work with these additions.  The naming convention
is:
   SOC -> CortexA9 quad core = ca9x4
   daughterboard -> Coretile = ct
   motherboard -> Versatile Express = vxp
This gives ca9x4_ct_vxp.c as the board support file.

Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
diff --git a/boards.cfg b/boards.cfg
index 62ffa42..38fa570 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -252,6 +252,7 @@
 magnesium	arm	arm926ejs	imx27lite	logicpd		mx27
 omap5912osk	arm	arm926ejs	-		ti		omap
 edminiv2	arm	arm926ejs	-		LaCie		orion5x
+ca9x4_ct_vxp	arm	armv7		vexpress	armltd
 omap3_overo	arm	armv7		overo		-		omap3
 omap3_pandora	arm	armv7		pandora		-		omap3
 omap3_zoom1	arm	armv7		zoom1		logicpd		omap3