[M] Change in coreboot[master]: soc/intel/jasperlake: Add configs for USB 3.1 Gen2 EV settings

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: ChiaLing, Eric Lai, Ricky Chang, Sheng-Liang Pan, Subrata Banik.

Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/76246?usp=email )

Change subject: soc/intel/jasperlake: Add configs for USB 3.1 Gen2 EV settings
......................................................................

Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/76246/comment/58a9ec0e_564362c6 :
PS4, Line 7: EV
What is EV?

https://review.coreboot.org/c/coreboot/+/76246/comment/12718f02_d16df73a :
PS4, Line 15: All usb configs were set correctly.
Without these configs, are the USB3 ports not supporting Gen2 speeds? What is the user visible functional change with these configs?