* 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>
mount-usb switched to dynamic USB device detection a while back,
so eliminate instances of CONFIG_BOOT_USB_DEV, and derive the
mounted USB device from /etc/mtab in the one place where it's
actually needed (usb-scan). Clean up areas around calls to
mount-usb for clarity/readability.
Addresses issue #673
Test: Build Librem 13v4, boot ISO file on USB
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
