drm/ci: fix DEBIAN_ARCH and get amdgpu probing

amdgpu driver wasn't loading because amdgpu firmware wasn't being
installed in the rootfs due to the wrong DEBIAN_ARCH variable.

rename ARCH to DEBIAN_ARCH also, so we don't have the confusing
DEBIAN_ARCH, KERNEL_ARCH and ARCH.

Signed-off-by: Helen Koike <[e-mail]>
Reviewed-by: David Heidelberg <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Maxime Ripard <[e-mail]>

drivers/gpu/drm/ci/build.sh

···
     apt-get install -y libssl-dev:armhf
 else
     GCC_ARCH="x86_64-linux-gnu"
-    DEBIAN_ARCH="x86_64"
+    DEBIAN_ARCH="amd64"
     DEVICE_TREES=""
 fi
 

drivers/gpu/drm/ci/image-tags.yml

···
    DEBIAN_BASE_TAG: "${CONTAINER_TAG}"
 
    DEBIAN_X86_64_BUILD_IMAGE_PATH: "debian/x86_64_build"
-   DEBIAN_BUILD_TAG: "${CONTAINER_TAG}"
+   DEBIAN_BUILD_TAG: "2023-10-06-amd"
 
-   KERNEL_ROOTFS_TAG: "${CONTAINER_TAG}"
+   KERNEL_ROOTFS_TAG: "2023-10-06-amd"
 
    DEBIAN_X86_64_TEST_BASE_IMAGE: "debian/x86_64_test-base"
    DEBIAN_X86_64_TEST_IMAGE_GL_PATH: "debian/x86_64_test-gl"

drivers/gpu/drm/ci/lava-submit.sh

···
 	--dump-yaml \
 	--pipeline-info "$CI_JOB_NAME: $CI_PIPELINE_URL on $CI_COMMIT_REF_NAME ${CI_NODE_INDEX}/${CI_NODE_TOTAL}" \
 	--rootfs-url-prefix "https://${BASE_SYSTEM_HOST_PATH}" \
-	--kernel-url-prefix "https://${PIPELINE_ARTIFACTS_BASE}/${ARCH}" \
-	--build-url "${FDO_HTTP_CACHE_URI:-}https://${PIPELINE_ARTIFACTS_BASE}/${ARCH}/kernel-files.tar.zst" \
+	--kernel-url-prefix "https://${PIPELINE_ARTIFACTS_BASE}/${DEBIAN_ARCH}" \
+	--build-url "${FDO_HTTP_CACHE_URI:-}https://${PIPELINE_ARTIFACTS_BASE}/${DEBIAN_ARCH}/kernel-files.tar.zst" \
 	--job-rootfs-overlay-url "${FDO_HTTP_CACHE_URI:-}https://${JOB_ROOTFS_OVERLAY_PATH}" \
 	--job-timeout-min ${JOB_TIMEOUT:-80} \
 	--first-stage-init artifacts/ci-common/init-stage1.sh \

drivers/gpu/drm/ci/test.yml

···
     - .lava-test:arm32
   variables:
     HWCI_TEST_SCRIPT: "/install/igt_runner.sh"
-    ARCH: "armhf"
+    DEBIAN_ARCH: "armhf"
   dependencies:
     - testing:arm32
   needs:
···
     - .lava-test:arm64
   variables:
     HWCI_TEST_SCRIPT: "/install/igt_runner.sh"
-    ARCH: "arm64"
+    DEBIAN_ARCH: "arm64"
   dependencies:
     - testing:arm64
   needs:
···
     - .lava-test:x86_64
   variables:
     HWCI_TEST_SCRIPT: "/install/igt_runner.sh"
-    ARCH: "x86_64"
+    DEBIAN_ARCH: "amd64"
   dependencies:
     - testing:x86_64
   needs: