Change in coreboot[master]: sc7280: Add Modem region to avoid modem cleanup in Secboot reboot

[mturney mturney (Code Review)]

Attention is currently required from: Shelley Chen, Ravi kumar, Sudheer Amrabadi, mturney mturney.
mturney mturney has uploaded a new patch set (#22) to the change originally created by Ravi kumar. ( https://review.coreboot.org/c/coreboot/+/58545 )

Change subject: sc7280: Add Modem region to avoid modem cleanup in Secboot reboot
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sc7280: Add Modem region to avoid modem cleanup in Secboot reboot

Modem uses different memory regions based on LTE/WiFi.
This adds correct carve-out to prevent region being disturbed.

BUG=b:182963902
TEST=Validated on qualcomm sc7280 developement board

Signed-off-by: T Michael Turney 
Change-Id: I56bfb210606b08893ff71dd1b6679f1ec102ec95
---
M src/soc/qualcomm/common/include/soc/symbols_common.h
M src/soc/qualcomm/sc7280/Makefile.inc
A src/soc/qualcomm/sc7280/carve_out.c
M src/soc/qualcomm/sc7280/memlayout.ld
M src/soc/qualcomm/sc7280/soc.c
5 files changed, 31 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/45/58545/22