servo: add gsc controls to fatcat overlay

The GSC_RESET and CHASSIS_OPEN signals are connected to the servo
header. Include the relevant control files in the fatcat overlay.

BUG=none
TEST=CQ

Change-Id: Ib7158bbd129eea316b159f11950dc2c70c27be95
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/hdctools/+/7632468
Auto-Submit: Mary Ruthven <[email protected]>
Tested-by: Mary Ruthven <[email protected]>
Reviewed-by: Keith Haddow <[email protected]>
Commit-Queue: Mary Ruthven <[email protected]>
Reviewed-by: [email protected] <[email protected]>
1 file changed