Change in coreboot[master]: sc7280: Add SHRM firmware support

[Ravi kumar (Code Review)]

Attention is currently required from: Shelley Chen, Ravi kumar, Paul Menzel, mturney mturney, Julius Werner.
Hello Shelley Chen, build bot (Jenkins), Patrick Georgi, mturney mturney, Julius Werner,

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

https://review.coreboot.org/c/coreboot/+/49392

to look at the new patch set (#78).

Change subject: sc7280: Add SHRM firmware support
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sc7280: Add SHRM firmware support

SHRM is a system hardware resource manager. It is used to manage run time
DDRSS activities. DDRSS stands for DDR subsystem.

BUG=b:182963902
TEST=Validated on qualcomm sc7280 development board
by trying DDR clocks which through SHRM RSI command.

Change-Id: I44484573a829eaefbd34907c6fe78d427506a762
Signed-off-by: Ravi Kumar Bokka 
---
M src/mainboard/google/herobrine/romstage.c
M src/soc/qualcomm/common/include/soc/symbols_common.h
M src/soc/qualcomm/sc7280/Makefile.inc
A src/soc/qualcomm/sc7280/include/soc/shrm.h
M src/soc/qualcomm/sc7280/memlayout.ld
A src/soc/qualcomm/sc7280/shrm_load_reset.c
6 files changed, 44 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/49392/78