* Add plymouth-theme-armbian package
* Adjust all bootscripts to adapt plymouth
* Auto show logo accroding to BOOT_LOGO
* Enable plymouth detail mode when bootlogo=false
* Add a new board config var - HAS_VIDEO_OUTPUT
This var is used to indicate whether device has a HW video output.
If it's set to "no", we will disable kernel bootsplash, plymouth and BUILD_DESKTOP
* Rename package to be aligned with others
* Disable kernel bootloader, but keep the code for it
* Rather keep bootlogo in the kernel for a while, otherwise kernel upgrade will turn bootup into the darkness
Co-authored-by: Igor Pečovnik <igorpecovnik@users.noreply.github.com>
Co-authored-by: Igor <igor@armbian.com>