ci: rename FORCE_KERNEL_TAG to EXTERNAL_KERNEL_TAG

FORCE_KERNEL_TAG allows testing kernel uprevs without rebuilding
containers by supplying an external kernel directly for booting on
hardware devices. Renaming it to EXTERNAL_KERNEL_TAG clarifies its
purpose, distinguishing it from KERNEL_TAG which rebuilds containers.

Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31795>

.gitlab-ci/bare-metal/cros-servo.sh

@@ -90,7 +90,7 @@ rm -rf /tftp/*
 if echo "$BM_KERNEL" | grep -q http; then
   curl -L --retry 4 -f --retry-all-errors --retry-delay 60 \
       $BM_KERNEL -o /tftp/vmlinuz
-elif [ -n "${FORCE_KERNEL_TAG}" ]; then
+elif [ -n "${EXTERNAL_KERNEL_TAG}" ]; then
   curl -L --retry 4 -f --retry-all-errors --retry-delay 60 \
     "${FDO_HTTP_CACHE_URI:-}${KERNEL_IMAGE_BASE}/${DEBIAN_ARCH}/${BM_KERNEL}" -o /tftp/vmlinuz
   curl -L --retry 4 -f --retry-all-errors --retry-delay 60 \

.gitlab-ci/bare-metal/fastboot.sh

@@ -107,7 +107,7 @@ if echo "$BM_KERNEL $BM_DTB" | grep -q http; then
 
   cat kernel dtb > Image.gz-dtb
 
-elif [ -n "${FORCE_KERNEL_TAG}" ]; then
+elif [ -n "${EXTERNAL_KERNEL_TAG}" ]; then
   curl -L --retry 4 -f --retry-all-errors --retry-delay 60 \
       "${FDO_HTTP_CACHE_URI:-}${KERNEL_IMAGE_BASE}/${DEBIAN_ARCH}/${BM_KERNEL}" -o kernel
   curl -L --retry 4 -f --retry-all-errors --retry-delay 60 \

.gitlab-ci/bare-metal/poe-powered.sh

@@ -104,7 +104,7 @@ if [ -f "${BM_BOOTFS}" ]; then
 fi
 
 # If BM_KERNEL and BM_DTS is present
-if [ -n "${FORCE_KERNEL_TAG}" ]; then
+if [ -n "${EXTERNAL_KERNEL_TAG}" ]; then
   if [ -z "${BM_KERNEL}" ] || [ -z "${BM_DTB}" ]; then
     echo "This machine cannot be tested with external kernel since BM_KERNEL or BM_DTB missing!"
     exit 1
@@ -122,7 +122,7 @@ date +'%F %T'
 
 # Install kernel modules (it could be either in /lib/modules or
 # /usr/lib/modules, but we want to install in the latter)
-if [ -n "${FORCE_KERNEL_TAG}" ]; then
+if [ -n "${EXTERNAL_KERNEL_TAG}" ]; then
   tar --keep-directory-symlink --zstd -xf modules.tar.zst -C /nfs/
   rm modules.tar.zst &
 elif [ -n "${BM_BOOTFS}" ]; then
@@ -136,7 +136,7 @@ fi
 date +'%F %T'
 
 # Install kernel image + bootloader files
-if [ -n "${FORCE_KERNEL_TAG}" ] || [ -z "$BM_BOOTFS" ]; then
+if [ -n "${EXTERNAL_KERNEL_TAG}" ] || [ -z "$BM_BOOTFS" ]; then
   mv "${BM_KERNEL}" "${BM_DTB}.dtb" /tftp/
 else  # BM_BOOTFS
   rsync -aL --delete $BM_BOOTFS/boot/ /tftp/

.gitlab-ci/lava/lava-submit.sh

@@ -49,7 +49,7 @@ PYTHONPATH=artifacts/ artifacts/lava/lava_job_submitter.py \
 	--pipeline-info "$CI_JOB_NAME: $CI_PIPELINE_URL on $CI_COMMIT_REF_NAME ${CI_NODE_INDEX}/${CI_NODE_TOTAL}" \
 	--rootfs-url-prefix "https://${BASE_SYSTEM_HOST_PATH}" \
 	--kernel-url-prefix "${KERNEL_IMAGE_BASE}/${DEBIAN_ARCH}" \
-	--kernel-external "${FORCE_KERNEL_TAG}" \
+	--kernel-external "${EXTERNAL_KERNEL_TAG}" \
 	--build-url "${ARTIFACT_URL}" \
 	--job-rootfs-overlay-url "${LAVA_HTTP_CACHE_URI:-}https://${JOB_ROOTFS_OVERLAY_PATH}" \
 	--job-timeout-min ${JOB_TIMEOUT:-30} \