Change in coreboot[master]: mb/google/brya/var/primus{4es}: add eMMC enable pin in ramstage

[Casper Chang (Code Review)]

Attention is currently required from: Tim Wawrzynczak.
Hello Tim Wawrzynczak,

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

https://review.coreboot.org/c/coreboot/+/62703

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

Change subject: mb/google/brya/var/primus{4es}: add eMMC enable pin in ramstage
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mb/google/brya/var/primus{4es}: add eMMC enable pin in ramstage

Program BayHub eMMC enable pin in ram stage to prevent baseboad
override the setting leads RTD3 not able to control when enter and
exit suspend state.

BUG=b:222436260
TEST=USE="project_primus" emerge-brya coreboot chromeos-bootimage
     scope enable pin while performing suspend stress and enable pin
     works as expected.
     test suspend stress 1000 cycles passed on primus.

Signed-off-by: Casper Chang 
Change-Id: I1b6f164cc326bd368addb1e143ad2cbd449bb08d
---
M src/mainboard/google/brya/variants/primus/gpio.c
M src/mainboard/google/brya/variants/primus4es/gpio.c
2 files changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/62703/2