glados: Set FSP params for min assertion widths and serirq

- Enable serial irq configuration in FSP.
- Set minimum assertion width values for FSP to configure.
- Set I2C4 voltage to 1.8V.
- Enable SaGv feature to dynamically train memory frequency.
- Disable Deep S3 to match chell so DeepSx story is consistent
on skylake-y boards.

BUG=chrome-os-partner:47688
BRANCH=none
TEST=emerge-glados coreboot (tested on chell board)

Change-Id: I1619dd5316060793f38b74f8f0bcaf23d8ab2552
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/321211
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed