[S] Change in coreboot[main]: mb/lenovo/t520: Add USB port config into devicetree

[Valentyn Sudomyr (Code Review)]

Attention is currently required from: Alexander Couzens, Paul Menzel, Valentyn Sudomyr.

Hello Alexander Couzens, Paul Menzel, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/83764?usp=email

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

Change subject: mb/lenovo/t520: Add USB port config into devicetree
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mb/lenovo/t520: Add USB port config into devicetree

Devicetree for lenovo/520 is missing USB ports config, hence they
don't work. This change introduces USB port config.
Tests performed:
- Can select a boot media using a USB keyboard from any port.
- Can boot from each port except usb@1:1.1.
- Measured read speed from a thumb drive on each port 24.5-28.9 MiB/s.

Change-Id: I96dba153a563e0e290b96b837fdca39d7598ef17
Signed-off-by: PuFF1k 
---
M src/mainboard/lenovo/t520/devicetree.cb
1 file changed, 18 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/64/83764/4