Change in coreboot[master]: mb/hp/z220_series: Add Z220 CMT Workstation variant

[Damien Zammit (Code Review)]

Attention is currently required from: Edward O'Callaghan, Angel Pons.
Hello build bot (Jenkins), Edward O'Callaghan, Angel Pons,

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

https://review.coreboot.org/c/coreboot/+/62809

to look at the new patch set (#4).

Change subject: mb/hp/z220_series: Add Z220 CMT Workstation variant
......................................................................

mb/hp/z220_series: Add Z220 CMT Workstation variant

This is based on previous work done by a good friend of mine.

The notable differences between this board and the SFF variant is that:
 - CMT has 4 more PCI/PCIe ports than SFF.
 - CMT has 2 more SATA ports than SFF.

This commit needs to be boot tested on a Z220 CMT Workstation,
(but I suspect it boots to linux).

Change-Id: I2b298921e6f509440ec7b049e086c0878f708bd3
Signed-off-by: Damien Zammit 
---
M src/mainboard/hp/z220_series/Kconfig
M src/mainboard/hp/z220_series/Kconfig.name
A src/mainboard/hp/z220_series/variants/z220_cmt_workstation/gpio.c
A src/mainboard/hp/z220_series/variants/z220_cmt_workstation/overridetree.cb
4 files changed, 197 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/62809/4