[M] Change in coreboot[master]: libpayload: Enable LTO by default

[build bot (Jenkins) (Code Review)]

Attention is currently required from: Nico Huber, Stefan Reinauer, Paul Menzel, Julius Werner.

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51177 )

Change subject: libpayload: Enable LTO by default
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Patch Set 13:

(2 comments)

Commit Message:

Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-163659):
https://review.coreboot.org/c/coreboot/+/51177/comment/d7315321_cc7b04ec 
PS13, Line 21: ```
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-163659):
https://review.coreboot.org/c/coreboot/+/51177/comment/88b43731_1abd28ab 
PS13, Line 47: /usr/bin/ld.bfd: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
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