[S] Change in coreboot[main]: soc/amd/common: use common physical address bit reservation code

[Felix Held (Code Review)]

Attention is currently required from: Fred Reitberger, Jason Glenesk, Jérémy Compostella, Marshall Dawson, Matt DeVillier.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78074?usp=email )

Change subject: soc/amd/common: use common physical address bit reservation code
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Patch Set 2:

(1 comment)

File src/soc/amd/common/block/cpu/noncar/cpu.c:

https://review.coreboot.org/c/coreboot/+/78074/comment/edc5a956_381d0883 :
PS2, Line 45: 	else
> it's not necessary, but i find it a bit nicer to read with the else compared to just having the retu […]

just tried removing the else to see how the code looks after that and at least for me that makes less obvious to see what it does