purism/librem_skl: add libgfxinit support
Panel settings taken from KBL FSP sample vbt.bin
Test: build/boot librem13v2/15v3 with libgfxinit init,
verify both LFB and text modes functional
Change-Id: I9582065603417e53704244e95dde51a59f709664
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>