common: bootdelay: move CONFIG_BOOTDELAY into a Kconfig option

move CONFIG_BOOTDELAY into a Kconfig option. Used for this
purpose the moveconfig.py tool in tools.

Signed-off-by: Heiko Schocher <hs@denx.de>

Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
diff --git a/configs/tao3530_defconfig b/configs/tao3530_defconfig
index 6d0877d..4ee5737 100644
--- a/configs/tao3530_defconfig
+++ b/configs/tao3530_defconfig
@@ -2,6 +2,7 @@
 CONFIG_OMAP34XX=y
 CONFIG_TARGET_TAO3530=y
 CONFIG_SPL=y
+CONFIG_BOOTDELAY=3
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="TAO-3530 # "
 # CONFIG_CMD_IMI is not set