[S] Change in coreboot[master]: mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN

[Cliff Huang (Code Review)]

Attention is currently required from: Bora Guvendik, Hannah Williams, Anil Kumar K, Paul Menzel, Sridhar Siricilla.

Hello Bora Guvendik, Hannah Williams, Anil Kumar K, build bot (Jenkins), Jérémy Compostella,

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

https://review.coreboot.org/c/coreboot/+/73383

to look at the new patch set (#7).

Change subject: mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN
......................................................................

mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN

This adds RTD3 RPMX mutex to the root port. It is shared between RTD3
and WWAN. The purpose of using this mutex is to prevent OSPM from
calling _ON and _OFF methods while WWAN kernel driver is calling _RST,
which accesses the GPIO pins.

BUG=NA
BRANCH=firmware-brya-14505.B
TEST=boot to OS and check the generated SSDT table for the root port.
The RPMX mutex should be generated under the root port.

Signed-off-by: Cliff Huang 
Change-Id: I809eb84cb1a09deb168040e83041b65237a1b576
---
M src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
M src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
2 files changed, 22 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/73383/7