gitlab: add ubuntu-22.04-aarch64-without-defaults

This does a very minimal build without default devices or features. I
chose the aarch64 runner as it doesn't count towards CI minutes and is
a fairly under-utilised builder.

Message-Id: <20230503091244.1450613-20-alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

.gitlab-ci.d/custom-runners/ubuntu-22.04-aarch64.yml

@@ -45,6 +45,28 @@ ubuntu-22.04-aarch64-all:
  - make --output-sync -j`nproc --ignore=40`
  - make --output-sync -j`nproc --ignore=40` check
 
+ubuntu-22.04-aarch64-without-defaults:
+ extends: .custom_runner_template
+ needs: []
+ stage: build
+ tags:
+ - ubuntu_22.04
+ - aarch64
+ rules:
+ - if: '$CI_PROJECT_NAMESPACE == "qemu-project" && $CI_COMMIT_BRANCH =~ /^staging/'
+   when: manual
+   allow_failure: true
+ - if: "$AARCH64_RUNNER_AVAILABLE"
+   when: manual
+   allow_failure: true
+ script:
+ - mkdir build
+ - cd build
+ - ../configure --disable-user --without-default-devices --without-default-features
+   || { cat config.log meson-logs/meson-log.txt; exit 1; }
+ - make --output-sync -j`nproc --ignore=40`
+ - make --output-sync -j`nproc --ignore=40` check
+
 ubuntu-22.04-aarch64-alldbg:
  extends: .custom_runner_template
  needs: []