ci/fastboot: use gzipped Image to avoid compressing on the runner

Faster download, one less step. Win-win.

Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23816>

.gitlab-ci/lava/utils/uart_job_definition.py

@@ -36,7 +36,6 @@ def generate_lava_yaml_payload(args) -> dict[str, Any]:
             "docker": {
                 "image": "registry.gitlab.collabora.com/lava/health-check-docker",
                 "steps": [
-                    "gzip Image",
                     f"cat Image.gz {args.dtb_filename}.dtb > Image.gz+dtb",
                     "mkbootimg --kernel Image.gz+dtb"
                     + ' --cmdline "root=/dev/nfs rw nfsroot=$NFS_SERVER_IP:$NFS_ROOTFS,tcp,hard rootwait ip=dhcp init=/init"'

src/freedreno/ci/gitlab-ci.yml

@@ -263,6 +263,7 @@ a618-traces-performance:
 .lava-sm8350-hdk:
   variables:
     BOOT_METHOD: fastboot
+    KERNEL_IMAGE_NAME: "Image.gz"
     KERNEL_IMAGE_TYPE: ""
     # Increase the hangcheck timer for our spilling tests which bump up against
     # the .5s default.