samus: Update SPD

- geometry was incorrect for 8GB modules, should be x32,
so refactor the rest of the geometry to match
- some of the timing values were off, calcualte new values
from the datasheet

BUG=chrome-os-partner:28234
BRANCH=None
TEST=build and boot on samus

Original-Change-Id: I645f354ef21c5032ab73c66e1ad843136ec93eff
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/210660
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 8b2ce5c58442e039f5f6e0e053c0072fdec76e9c)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I29daa9e0ad1bf32be914c0d998f188b9827344a1
Reviewed-on: http://review.coreboot.org/8948
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
4 files changed