defconfig stock: add nebula local version
defconfig stock: enable F2FS
defconfig stock: add frandom config
defconfig stock: enable UKSM
defconfig stock: enable I/O schedulers
- SIO I/O scheduler
- ROW I/O scheduler
- VR I/O scheduler
- ZEN I/O scheduler
defconfig stock: enable cpu governors

- SmartassV2
- SmartassH3
- LulzActive
defconfig stock: enable dynamic fsync
defconfig stock: enable async fsync