The code to find the SPD data for the mainboard based on GPIOs
is moved from romstage.c into spd.c.
It relies on the updated pei_data structure from broadwell instead
of the haswell interface.
BUG=chrome-os-partner:31286
TEST=Compile only.
BRANCH=None.
Change-Id: Idd9de5701a710be7f59d8e1cd9af2ddea236c261
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/213955
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>