bsp:u-boot: Set fv_env.config via libubootenv
The way it is done for nxp devices rather than what was default from Mediatek
As of 8 April 2024, the git.seco.com instance was upgraded to the Premium version. External users and SECO customers who need access to private groups or repositories can make a request by contacting SECO support team via the ticketing platform (https://support.seco.com/).
The way it is done for nxp devices rather than what was default from Mediatek