env: Add printk dependency in kcnf

Signed-off-by: Nikita 'webconn' Maslov <wkernelteam@gmail.com>
bootstrap: Some decorations

Signed-off-by: Nikita 'webconn' Maslov <wkernelteam@gmail.com>
stepper: Add Antares startup support

Signed-off-by: Nikita 'webconn' Maslov <wkernelteam@gmail.com>
Merge with README