[L] Change in coreboot[main]: mb/amd/birman_plus: Add glinda SOC option for Birman+

[Anand Vaikar (Code Review)]

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

Anand Vaikar has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80770?usp=email )

Change subject: mb/amd/birman_plus: Add glinda SOC option for Birman+
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Patch Set 4:

(3 comments)

File src/mainboard/amd/birman_plus/Kconfig:

https://review.coreboot.org/c/coreboot/+/80770/comment/33856331_6f8d6a15 :
PS3, Line 82: 	# This is a Birmanplus_Phoenix-specific override of soc/amd/(phoenix | glinda)/Kconfig
> `Birmanplus_Phoenix` or just `birmanplus`?

Done

File src/mainboard/amd/birman_plus/Kconfig.name:

https://review.coreboot.org/c/coreboot/+/80770/comment/daa4b756_f78f2f43 :
PS3, Line 7: 	bool "->  Birmanplus for Glinda SoC"
> Inconsistent capitalization - should this match the `BirmanPlus` for phoenix?

Done

File src/mainboard/amd/birman_plus/port_descriptors_phoenix.c:

https://review.coreboot.org/c/coreboot/+/80770/comment/3e98938b_d49a4797 :
PS3, Line 7: //#include <soc/soc_util.h>
> dead code

Done