[coreboot-gerrit] Change in coreboot[master]: mb/lenovo/t440p: Enable dGPU on Lenovo T440P

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Hello Alexander Couzens, Patrick Rudolph, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/38723

to look at the new patch set (#5).

Change subject: mb/lenovo/t440p: Enable dGPU on Lenovo T440P
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mb/lenovo/t440p: Enable dGPU on Lenovo T440P

Enable the dGPU on the Lenovo T440P.  It uses the same code (roughly) of
the T430S.  By default, it is set to be disabled however it can be
enabled via the nvram option enable_dual_graphics. Removed hybrid graphics
options too as they are not valid for the T440p. Tested on a T440P with
Ubuntu 18.04.4 with Kernel 5.3.0-29 (successful). Tested on same machine
with Windows 10 1909 (machine check exception bluescreen).

Change-Id: Idf8c2c0d1ae34bda8736448d3e350396e3cf7a93
Signed-off-by: Chris Morgan 
---
M src/mainboard/lenovo/t440p/cmos.default
M src/mainboard/lenovo/t440p/cmos.layout
M src/mainboard/lenovo/t440p/romstage.c
3 files changed, 22 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/23/38723/5