Change in coreboot[master]: Revert "util/crossgcc: Update gcc to 11.2"

[Iru Cai (Code Review)]

Attention is currently required from: Nico Huber, Branden Waldner, Idwer Vollering, Mike Banon, Arthur Heymans, Jacob Garber, Werner Zeh, Iru Cai, Harshit Sharma.
Iru Cai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59636 )

Change subject: Revert "util/crossgcc: Update gcc to 11.2"
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Patch Set 1:

(1 comment)

Patchset:

PS1:
> I may try to use UBSAN (General Setup -> Undefined behavior sanitizer support) to check if there's a […]

I just find some UBs with emulation/qemu-i440fx. I don't know whether there's one making coreboot unable to boot on real hardware.