Because partition 'envparam' has been removed, so, fix it.
OTOH, uboot will also override this if 'sys_bootargs' specified
in env partition.
e.g. env_emmc
blkdevparts=mmcblk0:32K(env),512K@32K(idblock),4M(uboot),32M(boot),2G(rootfs),1G(oem),2G(userdata),-(media)
sys_bootargs=root=/dev/mmcblk0p5 rootfstype=ext4
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I7917dee2e642cc18c926e99eae623083453c4693