Broadwell: Select PCIE_L1_SUB_STATE and apply Broadwell settings.

Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
BUG=chrome-os-partner:31424
TEST=Build an image and confirm the settings are correctly applied
     to registers for PCIe L1 Sub-State feature enabling.

Original-Commit-Id: b94c8c715febe3a04bfdf52f7b69d73ece0f6faf
Original-Signed-off-by: Kenji Chen <kenji.chen@intel.com>
Original-Change-Id: I07ce6eea648b1b37d606f5529edad184e3de70ac
Original-Reviewed-on: https://chromium-review.googlesource.com/222599
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

Change-Id: I07336599797c09bf23e5b15059d6ad812fdc7c61
Reviewed-on: http://review.coreboot.org/9223
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2 files changed