[VOL-4329] Parameterized test job pipeline timeout

Change-Id: I055c8ef9c248728ee4c6b4a1e94b49674364145b
diff --git a/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy b/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
index a87e300..26655a4 100644
--- a/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
@@ -31,7 +31,7 @@
     label "${params.buildNode}"
   }
   options {
-    timeout(time: 280, unit: 'MINUTES')
+    timeout(time: ${params.timeout}, unit: 'MINUTES')
   }
 
   environment {