armv7: Add support for ST-Ericsson U8500 href platform

Minimal platform support to boot linux from SD.

Supported devices/hw limited to external MMC/SD slot,
GPIO, I2C and minimal PRCMU.

Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Albert Aribaud <albert.aribaud@free.fr>
diff --git a/boards.cfg b/boards.cfg
index ea5a850..d2cacc8 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -154,6 +154,7 @@
 smdkv310		     arm	 armv7	     smdkv310		 samsung	s5pc2xx
 harmony                      arm         armv7       harmony             nvidia         tegra2
 seaboard                     arm         armv7       seaboard            nvidia         tegra2
+u8500_href                   arm         armv7       u8500               st-ericsson    u8500
 actux1                       arm         ixp
 actux2                       arm         ixp
 actux3                       arm         ixp