[Bug 2129017] Re: [SRU] Fix incorrect PCR selection list used in nullboot tests

[Mate Kukri]

Jammy one is also fine now, passes and has the correct PCR selection
list.

** Tags removed: verification-needed verification-needed-jammy
** Tags added: verification-done verification-done-jammy

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Title:
  [SRU] Fix incorrect PCR selection list used in nullboot tests

Status in python-uefivars package in Ubuntu:
  Invalid
Status in ubuntu-boot-test package in Ubuntu:
  New
Status in python-uefivars source package in Jammy:
  Fix Committed
Status in ubuntu-boot-test source package in Jammy:
  Fix Committed
Status in python-uefivars source package in Noble:
  Invalid
Status in ubuntu-boot-test source package in Noble:
  Fix Committed

Bug description:
  [ Impact ]

   * This is a follow up fix for
  https://bugs.launchpad.net/ubuntu/+source/ubuntu-boot-
  test/+bug/2123887

   * The incorrect PCR selection list was used in the nullboot automated tests due to encrypt-cloud-image
     not being passed a "UEFI config".

  [ Test Plan ]

   * Make sure the autopkgtests pass for ubuntu-boot-test in proposed, and
     review the logs to ensure the correct PCR selection list is used.

   * ubuntu-boot-test is not intended to be installed or used on end user
     machines, thus there isn't any value in traditional manual local tests.

  [ Where problems could occur ]

   * The ubuntu-boot-test package was never seeded, nor is it intended to be
     used by end users.

   * The worst case scenario is regression of tests into producing false positives,
     but this is unlikely given that we are only changing the nullboot one, which
     does not currently test PCR sealing correctly. 

  [ Other Info ]

   * Despite being a universe package, ubuntu-boot-test is maintained by the
     Canonical Foundations team.

   * Azure CVMs are not supported by Ubuntu on non-LTS releases, thus there is no
     value in uploading this change first to devel as no images exist that are
     required to enable this test.

   * The proper fix for this requires the backporting of the python-uefivars package to Jammy.
     This was accepted into the archive alongside the initial ubuntu-boot-test uploads in 2023
     here: https://bugs.launchpad.net/ubuntu/+source/python-uefivars/+bug/2044086

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