cmd:seco-ne: Add oneshot modes to ENV bootselect
Add oneshot, oneshotA and oneshotB modes to the ENV bootselect implementation.
Dear all, On Thursday, 4th September 2025, we will test the new disaster recovery environment. A disaster recovery test will take place between 4:00 PM and 6:00 PM CEST. Please refrain from making any changes, as they will be lost. Once testing is complete, the production environment will be restored. Thank you for your understanding.
Add oneshot, oneshotA and oneshotB modes to the ENV bootselect implementation.