arm: odroid: Inherit default value for bootdelay from distro_bootcmd.

The default value with distro_bootcmd is 2 seconds, which is
reasonably fast, and provides a consistent experience across platforms
supporting distro_bootcmd.

The current bootdelay value of 0 seconds is a bit challenging to
interrupt when desired.

Acked-by: Lukasz Majewski <lukma@denx.de>

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

include/configs/odroid.h

@@ -164,7 +164,6 @@
 	"mmcbootpart=1\0" \
 	"mmcrootdev=0\0" \
 	"mmcrootpart=2\0" \
-	"bootdelay=0\0" \
 	"dfu_alt_system="CONFIG_DFU_ALT \
 	"dfu_alt_info=Please reset the board\0" \
 	"consoleon=set console console=ttySAC1,115200n8; save; reset\0" \