Support for the MX31ADS evaluation board from Freescale

This patch adds support for the MX31ADS evaluation board from Freescale,
initialization code is copied from RedBoot sources, also provided by
Freescale.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
diff --git a/MAKEALL b/MAKEALL
index 8241f45..8e5dcc4 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -510,6 +510,7 @@
 	apollon		\
 	imx31_litekit	\
 	imx31_phycore	\
+	mx31ads		\
 "
 
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