Change in libgfxinit[master]: gma baytrail: Add connectors support

[Angel Pons (Code Review)]

Hello Nico Huber, Martin Roth, Patrick Georgi, Matt DeVillier,

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

https://review.coreboot.org/c/libgfxinit/+/42359

to look at the new patch set (#52).

Change subject: gma baytrail: Add connectors support
......................................................................

gma baytrail: Add connectors support

Tested on Asrock Q1900M: HDMI, DVI and VGA all work correctly. Using two
displays at the same time also works.

UNTESTED: DisplayPort and eDP support, integrated panel support.

Change-Id: If81b1268c69b64fa30384f629f1eb43bda15ef52
Signed-off-by: Angel Pons 
---
M common/valleyview/Makefile.inc
A common/valleyview/hw-gfx-gma-connectors.adb
A common/valleyview/hw-gfx-gma-port_detect.adb
A common/valleyview/hw-gfx-gma-soc-dp.adb
A common/valleyview/hw-gfx-gma-soc-dp.ads
A common/valleyview/hw-gfx-gma-soc-hdmi.adb
A common/valleyview/hw-gfx-gma-soc-hdmi.ads
A common/valleyview/hw-gfx-gma-soc-vga.adb
A common/valleyview/hw-gfx-gma-soc-vga.ads
A common/valleyview/hw-gfx-gma-soc.ads
10 files changed, 804 insertions(+), 12 deletions(-)

git pull ssh://review.coreboot.org:29418/libgfxinit refs/changes/59/42359/52