Using updated voltha-onos 4.1.1

Change-Id: I8a45f50f369bb6a78a68547096202b6d1548d1e7
diff --git a/releases/voltha-2.4 b/releases/voltha-2.4
index c0b57ea..f110a55 100644
--- a/releases/voltha-2.4
+++ b/releases/voltha-2.4
@@ -16,4 +16,4 @@
 # kind-voltha's default which is 'master'.
 # Also we need to specify the tag for voltha/voltha-onos image since this is
 # not in the ONOS chart.
-export EXTRA_HELM_FLAGS="--set defaults.image_tag=null,images.onos.tag=4.1.0 "
+export EXTRA_HELM_FLAGS="--set defaults.image_tag=null,images.onos.tag=4.1.1 "