Change in coreboot[master]: soc/amd/common: Handle power resume after power failure

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Furquan Shaikh, Martin Roth, Marshall Dawson, Felix Held.
Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51924 )

Change subject: soc/amd/common: Handle power resume after power failure
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Patch Set 6:

(2 comments)

File src/soc/amd/common/block/pm/Kconfig:

https://review.coreboot.org/c/coreboot/+/51924/comment/e90c7708_c2667c54 
PS4, Line 5: select POWER_STATE_DEFAULT_ON_AFTER_FAILURE
> Yeah, I'm not a fan of selecting the default behavior at the soc either. […]

Marshall, I am starting with default y. Depending on how often the mainboards override the default policy we can change it accordingly.

File src/soc/amd/common/block/pm/pmlib.c:

https://review.coreboot.org/c/coreboot/+/51924/comment/bd5ad112_5f427818 
PS4, Line 10: 0x4
> amd/common also uses a lot of BIT(x)

Done