[M] Change in coreboot[main]: mb/amd/birman_plus: Update glinda DXIO descriptors per schematics

[Paul Menzel (Code Review)]

Attention is currently required from: Anand Vaikar, Felix Held, Fred Reitberger, Martin L Roth.

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81036?usp=email )

Change subject: mb/amd/birman_plus: Update glinda DXIO descriptors per schematics
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Patch Set 2: Code-Review+1

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/81036/comment/0c3ee7ca_3d2f4223 :
PS2, Line 7: schematics
What revision?

https://review.coreboot.org/c/coreboot/+/81036/comment/a1b83172_fa2412da :
PS2, Line 9: glinda soc DXIO descriptors are updated for Birman+ mainboard
Please give a quick overview in the commit message.

https://review.coreboot.org/c/coreboot/+/81036/comment/ca363dff_2a69c806 :
PS2, Line 11: 
One blank line is enough.