google/chell: Minor updates from EVT and FSP 1.8.0

google/chell: Minor updates from EVT and FSP 1.8.0

- Add pullup on LPC address lines for leakage
- Configure PCH_WP early so it gets set properly in VBNV
- Disable SD card reader in favor of USB

BUG=chrome-os-partner:47346
BRANCH=none
TEST=build and boot on chell EVT

Change-Id: Ibac79c6cbef0515b1e8a513cfde5fee184e4c70a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ebd0c16a6009b74d3c6c36878c502fda9bb3020d
Original-Change-Id: If2bc4eb546a1aab50d3688b6e92f8c38214c9cca
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/317241
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12979
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>