tuning search space fix

Author: priyakasimbeg

docker/scripts/startup.sh

@@ -260,7 +260,7 @@ if [[ ! -z ${SUBMISSION_PATH+x} ]]; then
 
     # Flags for rulesets
     if [[ ${TUNING_RULESET} == "external" ]]; then
-        TUNING_SEARCH_SPACE_FLAG="--submission_path=${SUBMISSION_PATH}"
+        TUNING_SEARCH_SPACE_FLAG="--tuning_search_space=${TUNING_SEARCH_SPACE}"
     fi
 
     # The TORCH_RUN_COMMAND_PREFIX is only set if FRAMEWORK is "pytorch"