Change in coreboot[master]: mb/asus/p5gc-mx: Implement resume from S3 support

[Arthur Heymans (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change.  Please visit

https://review.coreboot.org/19602

to look at the new patch set (#2).

Change subject: mb/asus/p5gc-mx: Implement resume from S3 support
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mb/asus/p5gc-mx: Implement resume from S3 support

Needs the ramstage configuration enabling of SuperIO GPIO pnp devices
for BSEL straps.

Also needs VSBGATE# to be on for ram to be powered during S3.

TESTED with 800MHz ans 1067MHz FSB CPUs at the correct straps when
resuming from S3.

Change-Id: I6ac927ee9dcce15fc7621aad57969fae8f5805ca
Signed-off-by: Arthur Heymans 
---
M src/mainboard/asus/p5gc-mx/Kconfig
M src/mainboard/asus/p5gc-mx/devicetree.cb
M src/mainboard/asus/p5gc-mx/romstage.c
3 files changed, 26 insertions(+), 16 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/02/19602/2