cmd:guf: Add ENV mode to bootselect
Added a fallback environment mode for the bootselect mechanism. By now, we have some devices that don't equip compatible RTCs. On these devices, the bootselect command doesn't work in the current form.
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/).
Added a fallback environment mode for the bootselect mechanism. By now, we have some devices that don't equip compatible RTCs. On these devices, the bootselect command doesn't work in the current form.