[Refactor and sync kernel from Openwrt]

[Description]
Refactor and sync kernel from OpenWRT

[Release-log]
N/A

13 files changed
tree: 3ccd1c44d382befd2d1e6a0b3c217eea6560d3fa
  1. classes/
  2. conf/
  3. recipes-connectivity/
  4. recipes-devtools/
  5. recipes-kernel/