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/bcm28155_ap_defconfig b/configs/bcm28155_ap_defconfig
index 4404f32..71a52a1 100644
--- a/configs/bcm28155_ap_defconfig
+++ b/configs/bcm28155_ap_defconfig
@@ -1,4 +1,5 @@
 CONFIG_ARM=y
+CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y
 CONFIG_TARGET_BCM28155_AP=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
@@ -22,4 +23,3 @@
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
 CONFIG_G_DNL_PRODUCT_NUM=0x0d02
 CONFIG_OF_LIBFDT=y
-CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y