bazel release build needs GPG key

Change-Id: I0a39cd6d55403b320aff10417f6950101f7f2ca8
diff --git a/jjb/onos/onos-release-build-verify.sh b/jjb/onos/onos-release-build-verify.sh
index 15d66b9..3b84774 100644
--- a/jjb/onos/onos-release-build-verify.sh
+++ b/jjb/onos/onos-release-build-verify.sh
@@ -12,5 +12,8 @@
 ./bazel.sh --user
 PATH=$PATH:/home/jenkins/bin
 
+# import GPG key
+gpg --import jenkins.key
+
 # run the verification build
 onos-build-and-upload 1.12.0-testbuild 1.12-SNAPSHOT master --dry-run