[L] Change in coreboot[main]: acpi: Add soc_acpigen_write_OSC_pci_domain

[Patrick Rudolph (Code Review)]

Attention is currently required from: Arthur Heymans, Christian Walter, Cliff Huang, Johnny Lin, Jonathan Zhang, Lance Zhao, Lean Sheng Tan, Shuo Liu, Tim Chu, Tim Wawrzynczak.

Patrick Rudolph has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81375?usp=email )

Change subject: acpi: Add soc_acpigen_write_OSC_pci_domain
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Patch Set 8: Code-Review+1

(4 comments)

File src/acpi/acpigen_pci.c:

https://review.coreboot.org/c/coreboot/+/81375/comment/050f5725_8429123e :
PS8, Line 164: 
`OSC_RET_UNRECOGNIZED_REV` is unused and check for Arg1 is missing.

https://review.coreboot.org/c/coreboot/+/81375/comment/186d7f92_a63799b3 :
PS8, Line 229: RETE
RETE is always 0 here, no need to or OSC_RET_FAILURE with it.

`acpigen_write_store_int_to_namestr(OSC_RET_FAILURE, "RETE");`

https://review.coreboot.org/c/coreboot/+/81375/comment/337570f5_eb051801 :
PS8, Line 291: acpigen_write_to_integer_from_namestring
RETE is always 0 here, no need to or OSC_RET_FAILURE with it.

`acpigen_write_store_int_to_namestr(OSC_RET_FAILURE, "RETE");`

https://review.coreboot.org/c/coreboot/+/81375/comment/857514ad_97cef795 :
PS8, Line 328: acpigen_emit_byte
You can emit the namestring directly without using a local variable.
```
acpigen_emit_namestring("CTRC");
acpigen_emit_namestring("OTRC");
```