Change in coreboot[master]: WIP sc7280: Add USB support WIP

[Ravi kumar (Code Review)]

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

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

https://review.coreboot.org/c/coreboot/+/51520

to look at the new patch set (#37).

Change subject: WIP sc7280: Add USB support WIP
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WIP sc7280: Add USB support WIP

Change-Id: I0c10821ea2c9a5082df555caac710011ea3a0af5
Signed-off-by: Sandeep Maheswaram 
---
M src/mainboard/google/herobrine/mainboard.c
M src/soc/qualcomm/sc7280/Makefile.inc
M src/soc/qualcomm/sc7280/include/soc/addressmap.h
A src/soc/qualcomm/sc7280/include/soc/usb.h
A src/soc/qualcomm/sc7280/usb.c
5 files changed, 743 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/51520/37