[VOL-4357] Using ONOS 2.5.4 as base image to fix the ONOS HA test

Change-Id: I160cb4d064f9e9a7d9afa5aaf3ff8fb0dd5ecf97
diff --git a/Dockerfile.voltha-onos b/Dockerfile.voltha-onos
index 24652e2..c96a728 100644
--- a/Dockerfile.voltha-onos
+++ b/Dockerfile.voltha-onos
@@ -34,7 +34,7 @@
 
 
 # Unpack and install specific apps from download stage
-FROM onosproject/onos:2.5.3 as install
+FROM onosproject/onos:2.5.4 as install
 
 # The ENV settings must be replicated below as they are not shared between stages
 ENV ONOS=/root/onos
@@ -58,7 +58,7 @@
 
 
 # Create the final image coping over the installed applications from the install stage
-FROM onosproject/onos:2.5.3
+FROM onosproject/onos:2.5.4
 
 # The ENV settings must be replicated below as they are not shared between stages
 ENV ONOS=/root/onos