Hook up PCIEXP_CLK_PM, PCIEXP_ASPM and PCIEXP_L1_SUBSTATE to the
option API.
This provides users an easy way to disable power saving options
that can limit performance.
Change-Id: I2b06a7c734a4fd4073e86c668742ee35e1d79956
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81906
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>