imx: Add support for zmx25 board

zmx25 is a board based on imx25 SoC, 64 Megs of LPDDR, 32 Megs of NOR flash, an
optional NAND flash.

Signed-off-by: Matthias Weisser <weisserm@arcor.de>
diff --git a/boards.cfg b/boards.cfg
index 4522ea7..5a2e157 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -131,6 +131,7 @@
 sheevaplug                   arm         arm926ejs   -                   Marvell        kirkwood
 dockstar                     arm         arm926ejs   -                   Seagate        kirkwood
 jadecpu                      arm         arm926ejs   jadecpu             syteco         mb86r0x
+zmx25                        arm         arm926ejs   zmx25               syteco         mx25
 imx27lite                    arm         arm926ejs   imx27lite           logicpd        mx27
 magnesium                    arm         arm926ejs   imx27lite           logicpd        mx27
 nhk8815                      arm         arm926ejs   nhk8815             st             nomadik