ci/lava: add farm in structured log files

Farm variable is added for devices in collabora farm.
So add support in LAVA job submitter to use this in
structured log files.

Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29583>

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

@@ -49,6 +49,7 @@ PYTHONPATH=artifacts/ artifacts/lava/lava_job_submitter.py \
 	--first-stage-init artifacts/ci-common/init-stage1.sh \
 	--ci-project-dir "${CI_PROJECT_DIR}" \
 	--device-type "${DEVICE_TYPE}" \
+	--farm "${FARM}" \
 	--dtb-filename "${DTB}" \
 	--jwt-file "${S3_JWT_FILE}" \
 	--kernel-image-name "${KERNEL_IMAGE_NAME}" \

.gitlab-ci/lava/lava_job_submitter.py

@@ -388,6 +388,7 @@ class LAVAJobSubmitter(PathResolver):
     boot_method: str
     ci_project_dir: str
     device_type: str
+    farm: str
     job_timeout_min: int  # The job timeout in minutes
     build_url: str = None
     dtb_filename: str = None
@@ -516,6 +517,7 @@ class StructuredLoggerWrapper:
     def _init_logger(self):
         STRUCTURAL_LOG["fixed_tags"] = self.__submitter.lava_tags
         STRUCTURAL_LOG["dut_job_type"] = self.__submitter.device_type
+        STRUCTURAL_LOG["farm"] = self.__submitter.farm
         STRUCTURAL_LOG["job_combined_fail_reason"] = None
         STRUCTURAL_LOG["job_combined_status"] = "not_submitted"
         STRUCTURAL_LOG["dut_attempt_counter"] = 0