[VOL-2964] increase timeout for clean up and install stages

Change-Id: I76291d274572825e3094c788572878371a0cfb1e
diff --git a/Jenkinsfile-voltha-build b/Jenkinsfile-voltha-build
index 51c3792..8db59c6 100644
--- a/Jenkinsfile-voltha-build
+++ b/Jenkinsfile-voltha-build
@@ -33,7 +33,7 @@
                 }
             }
             stage('Clean up') {
-                timeout(10) {
+                timeout(15) {
                     sh returnStdout: true, script: """
                     export KUBECONFIG=$WORKSPACE/${configBaseDir}/${configKubernetesDir}/${configFileName}.conf
                     for hchart in \$(helm list -q | grep -E -v 'docker-registry|mavenrepo|ponnet');
@@ -80,7 +80,7 @@
                 }
             }
             stage('Install Voltha')  {
-                timeout(10) {
+                timeout(20) {
                     sh returnStdout: true, script: """
                     export KUBECONFIG=$WORKSPACE/${configBaseDir}/${configKubernetesDir}/${configFileName}.conf
                     cd kind-voltha/