LAVA: Align build config name with Build stage

This patch aligns the build config names in LAVA test with Build stage.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I0366a7ff563d32c15a073782764d4f1b19a5f6b7
diff --git a/lava_helper/lava_create_jobs.py b/lava_helper/lava_create_jobs.py
index 4b27fa6..207a9a5 100755
--- a/lava_helper/lava_create_jobs.py
+++ b/lava_helper/lava_create_jobs.py
@@ -48,16 +48,6 @@
     )
 
 
-def get_build_name(params):
-    return "{}_{}_{}_{}_{}".format(
-        params["platform"],
-        params["compiler"],
-        params["name"],
-        params["build_type"],
-        params["boot_type"],
-    )
-
-
 def load_config_overrides(user_args, config_key):
     """Load a configuration from multiple locations and override it with user provided
     arguments"""
@@ -146,7 +136,7 @@
                                 "job_name": get_job_name(
                                     config["job_name"], params, user_args.jenkins_job,
                                 ),
-                                "build_name": get_build_name(params)
+                                "build_name": os.getenv('CONFIG_NAME')
                             }
                         )