purism/librem_skl: Enable VMX and Intel SpeedStep in devicetree

Although VmxEnable is currently ignored by FSP, a forthcoming patch
explicitly enables it in coreboot, so set it in anticipation of that.

Enable Intel SpeedStep to ensure the ACPI tables are generated for
the C-states/P-states which are required for the xen-acpi-processor
module to be loaded. Without it, the Qubes 4.0-rc4 installer will
complain at boot about modules that could not be loaded.

Change-Id: I968ef36ec9382a10db13d96fd3a5c0fc904db387
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/23684
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2 files changed