igep00x0: consolidate defconfigs

Defconfigs should remain the same except CONFIG_SYS_EXTRA_OPTIONS.
Drop NAND specific defconfig as flash type is runtime detected.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Javier Martinez Canillas <javier@samsung.com>
diff --git a/configs/igep0032_defconfig b/configs/igep0032_defconfig
index 1819995..81d05d4 100644
--- a/configs/igep0032_defconfig
+++ b/configs/igep0032_defconfig
@@ -2,7 +2,8 @@
 CONFIG_OMAP34XX=y
 # CONFIG_SPL_EXT_SUPPORT is not set
 CONFIG_TARGET_OMAP3_IGEP00X0=y
-CONFIG_SYS_EXTRA_OPTIONS="MACH_TYPE=MACH_TYPE_IGEP0032,BOOT_ONENAND"
+CONFIG_SYS_EXTRA_OPTIONS="MACH_TYPE=MACH_TYPE_IGEP0032"
+CONFIG_BOOTDELAY=3
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_VERSION_VARIABLE=y