fixes to voltha-go tests

- lint target doesn't create junit results
- test target needs more memory

Change-Id: I2df16ca152cebf08cb4c9240bb5344c8e820e0ba
diff --git a/jjb/verify/voltha-go.yaml b/jjb/verify/voltha-go.yaml
index 2da0fd8..47e5403 100644
--- a/jjb/verify/voltha-go.yaml
+++ b/jjb/verify/voltha-go.yaml
@@ -18,7 +18,9 @@
           name-extension: "-lint"
           unit-test-targets: 'lint'
           unit-test-keep-going: 'true'
+          junit-allow-empty-results: true
       - 'make-unit-test':
+          build-node: 'ubuntu16.04-basebuild-2c-4g'
           dest-gopath: "github.com/opencord"
           name-extension: "-tests"
           unit-test-targets: 'test'