* modules/linux: Add support for multiple kernel versions
Follow same pattern as used for coreboot. Add existing kernel version
as default for all existing boards.
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
* modules/linux: Add option to use 4.19 LTS kernel
Add option to use kernel 4.19.139 (current LTS version).
Duplicate existing patches from 4.14.62 as they all apply cleanly.
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
