Change in coreboot[master]: mb/intel/shadowmountain: Enable Type-C subsystem

[V Sowmya (Code Review)]

Attention is currently required from: V Sowmya, Subrata Banik, Aamir Bohra.
Hello build bot (Jenkins), Angel Pons, Subrata Banik, Aamir Bohra,

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

https://review.coreboot.org/c/coreboot/+/51026

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

Change subject: mb/intel/shadowmountain: Enable Type-C subsystem
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mb/intel/shadowmountain: Enable Type-C subsystem

This patch adds the changes to enable the TCSS.

BUG=b:175808146
TEST= Boot shadowmountain board, verify the TCSS functionality.

Signed-off-by: V Sowmya 
Change-Id: Ieaf1170ca718a14d24b773a4a85516e0bbfbb569
---
M src/mainboard/intel/shadowmountain/Kconfig
M src/mainboard/intel/shadowmountain/variants/baseboard/devicetree.cb
2 files changed, 49 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/26/51026/2