OMAP3: igep00x0: Add config option to choose flash storage memory

IGEP-based boards can have two different flash memories, a OneNAND or a
NAND device. Add a configuration option for to choose which memory to use.

Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
diff --git a/boards.cfg b/boards.cfg
index a000914..47e0c64 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -229,8 +229,10 @@
 omap3_overo                  arm         armv7       overo               -              omap3
 omap3_pandora                arm         armv7       pandora             -              omap3
 dig297                       arm         armv7       dig297              comelit        omap3
-igep0020                     arm         armv7       igep0020            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0020
-igep0030                     arm         armv7       igep0030            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0030
+igep0020                     arm         armv7       igep0020            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0020,BOOT_ONENAND
+igep0020_nand                arm         armv7       igep0020            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0020,BOOT_NAND
+igep0030                     arm         armv7       igep0030            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0030,BOOT_ONENAND
+igep0030_nand                arm         armv7       igep0030            isee           omap3		igep00x0:MACH_TYPE=MACH_TYPE_IGEP0030,BOOT_NAND
 am3517_evm                   arm         armv7       am3517evm           logicpd        omap3
 mt_ventoux                   arm         armv7       mt_ventoux          teejet         omap3
 omap3_zoom1                  arm         armv7       zoom1               logicpd        omap3