Change in coreboot[master]: [WIP] sb,soc/amd: Move common OSFL method in ASL

[Kyösti Mälkki (Code Review)]

Attention is currently required from: Raul Rangel, Michał Żygowski, Marshall Dawson, Paul Menzel, Alexander Couzens, Patrick Rudolph, Felix Held, Piotr Król.
Kyösti Mälkki has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50592 )

Change subject: [WIP] sb,soc/amd: Move common OSFL method in ASL
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Patch Set 2:

(1 comment)

File src/soc/amd/stoneyridge/acpi/sb_pci0_fch.asl:

https://review.coreboot.org/c/coreboot/+/50592/comment/e5c6b872_d0de9878 
PS2, Line 154: 	if (OSVR != Ones) {Return (OSVR)}	/* OS version was already detected */
Regarding the evalutiation of OSVR in _INI method of AZHD:

CB:40785

_INI is still retained in stoneyridge since I am unsure why it
   was added.

CB:40782

_INI method for AZHD device for Picasso family was just copied from
    Stoneyridge as part of initial change. There is no evidence that this
    is required for Picasso.