Releasing with ONOS ports fix and OLT port disable

Change-Id: Ib4829b475f4e2298b1da3a52f4d4037c17403a8a
diff --git a/Dockerfile.voltha-onos b/Dockerfile.voltha-onos
index a76ea7f..02e5a29 100644
--- a/Dockerfile.voltha-onos
+++ b/Dockerfile.voltha-onos
@@ -34,7 +34,7 @@
 
 
 # Unpack and install specific apps from download stage
-FROM onosproject/onos:2.5.7 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:2.5.7
+FROM onosproject/onos:2.5-latest
 
 # The ENV settings must be replicated below as they are not shared between stages
 ENV ONOS=/root/onos