[VOL-4503] Moving to onos-2.5 latest image in preparation for release

Change-Id: Iea6f772cfcd9ecadd2fb7036c60f524030076b41
diff --git a/Dockerfile.voltha-onos b/Dockerfile.voltha-onos
index 73c6c08..dbd2c0b 100644
--- a/Dockerfile.voltha-onos
+++ b/Dockerfile.voltha-onos
@@ -34,7 +34,7 @@
 
 
 # Unpack and install specific apps from download stage
-FROM onosproject/onos:2.5.4 as install
+FROM onosproject/onos:2.5-latest 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:2.5.4
+FROM onosproject/onos:2.5-latest
 
 # The ENV settings must be replicated below as they are not shared between stages
 ENV ONOS=/root/onos