tests/docker: merge debian-native with debian-amd64

debian-native isn't really needed and suffers from the problem of
tracking a distros dependencies rather than the projects. With a
little surgery we can make the debian-amd64 container architecture
neutral and allow people to use it to build a native QEMU.

Rename it so it follows the same non-arch pattern of the other distro
containers.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-4-alex.bennee@linaro.org>

.gitlab-ci.d/buildtest.yml

@@ -70,7 +70,7 @@ build-system-debian:
   needs:
     job: amd64-debian-container
   variables:
-    IMAGE: debian-amd64
+    IMAGE: debian
     CONFIGURE_ARGS: --with-coroutine=sigaltstack
     TARGETS: arm-softmmu i386-softmmu riscv64-softmmu sh4eb-softmmu
       sparc-softmmu xtensa-softmmu
@@ -82,7 +82,7 @@ check-system-debian:
     - job: build-system-debian
       artifacts: true
   variables:
-    IMAGE: debian-amd64
+    IMAGE: debian
     MAKE_CHECK_ARGS: check
 
 avocado-system-debian:
@@ -91,7 +91,7 @@ avocado-system-debian:
     - job: build-system-debian
       artifacts: true
   variables:
-    IMAGE: debian-amd64
+    IMAGE: debian
     MAKE_CHECK_ARGS: check-avocado
     AVOCADO_TAGS: arch:arm arch:i386 arch:riscv64 arch:sh4 arch:sparc arch:xtensa
 
@@ -101,7 +101,7 @@ crash-test-debian:
     - job: build-system-debian
       artifacts: true
   variables:
-    IMAGE: debian-amd64
+    IMAGE: debian
   script:
     - cd build
     - make NINJA=":" check-venv
@@ -589,7 +589,7 @@ build-tools-and-docs-debian:
     # when running on 'master' we use pre-existing container
     optional: true
   variables:
-    IMAGE: debian-amd64
+    IMAGE: debian
     MAKE_CHECK_ARGS: check-unit ctags TAGS cscope
     CONFIGURE_ARGS: --disable-system --disable-user --enable-docs --enable-tools
     QEMU_JOB_PUBLISH: 1
@@ -609,7 +609,7 @@ build-tools-and-docs-debian:
 # of what topic branch they're currently using
 pages:
   extends: .base_job_template
-  image: $CI_REGISTRY_IMAGE/qemu/debian-amd64:$QEMU_CI_CONTAINER_TAG
+  image: $CI_REGISTRY_IMAGE/qemu/debian:$QEMU_CI_CONTAINER_TAG
   stage: test
   needs:
     - job: build-tools-and-docs-debian

.gitlab-ci.d/containers.yml

@@ -11,7 +11,7 @@ amd64-debian-container:
   extends: .container_job_template
   stage: containers
   variables:
-    NAME: debian-amd64
+    NAME: debian
 
 amd64-ubuntu2204-container:
   extends: .container_job_template