[XS] Change in coreboot[main]: mb/system76/adl,rpl: Add FSP default timeout for PCIe 3.0 RPs

[Tim Crawford (Code Review)]

Attention is currently required from: Jeremy Soller, Paul Menzel.

Tim Crawford has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80756?usp=email )

Change subject: mb/system76/adl,rpl: Add FSP default timeout for PCIe 3.0 RPs
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Patch Set 3:

(4 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/80756/comment/4b3c79f0_0d75999b :
PS1, Line 7: Add timeouts for PCIe 3.0 RPs
           :
> Maybe: […]

Leaving as-is and explaining it's the FSP default value in the body.

https://review.coreboot.org/c/coreboot/+/80756/comment/ad1e4a65_c8ac9af0 :
PS1, Line 14: Tested on lemp12 with Samsung 980 PRO and 990 PRO drives.
> What drive firmware versions?

Done

https://review.coreboot.org/c/coreboot/+/80756/comment/8cdc788a_08f426f6 :
PS1, Line 15:
> Is there a default time-out value? Why 50 ms and not another value?

Changed to use FSP default of 56ms.

File src/mainboard/system76/adl/variants/darp8/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/80756/comment/8ef4a3c2_f64b5c0a :
PS1, Line 155: 				.pcie_rp_detect_timeout_ms = 50,
> Is there a default timeout?

Done