Use board_technology to build the path from where TP is to be loaded.

Change-Id: I8bb3293ea2444fb1efb28feae6a8f219445dc744
diff --git a/jjb/pipeline/voltha/voltha-2.8/physical-build.groovy b/jjb/pipeline/voltha/voltha-2.8/physical-build.groovy
index 3dbd97a..5244628 100644
--- a/jjb/pipeline/voltha/voltha-2.8/physical-build.groovy
+++ b/jjb/pipeline/voltha/voltha-2.8/physical-build.groovy
@@ -149,9 +149,8 @@
           if ( params.configurePod && params.profile != "Default" ) {
             for(int i=0; i < deployment_config.olts.size(); i++) {
               def tech_prof_directory = "XGS-PON"
-              // If no debian package is specified we default to GPON for the ADTRAN OLT.
-              if (!deployment_config.olts[i].containsKey("oltDebVersion") || deployment_config.olts[i].oltDebVersion.contains("asgvolt64")){
-                tech_prof_directory = "GPON"
+              if (deployment_config.olts[i].containsKey("board_technology")){
+                tech_prof_directory = deployment_config.olts[i]["board_technology"]
               }
               timeout(1) {
                 sh returnStatus: true, script: """