Draft: RFC: certs: Switch to MODULE_SIG_SHA512 instead of MODULE_SIG_SHA256

Salvatore Bonaccorsorequested to merge
carnil/linux:module-signature-sha512 into debian/latest

In upstream commit f3b93547b91a ("module: sign with sha512 instead of sha1 by default") in v6.14-rc1 (and which got backported to stable series in particular 6.12.26, 6.1.136 and 5.10.237) signing of modules is switched by default to sha512 instead of sha1.

In Debian we explicitly selected MODULE_SIG_SHA256. Follow upstream's default and switch to MODULE_SIG_SHA512.

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