Releasing 5.1.0 for VOLTHA 2.10

Change-Id: Idf73034f1b426b7d17d7e92439359a43aa38c97d
diff --git a/Dockerfile.voltha-onos b/Dockerfile.voltha-onos
index 02e5a29..f7afd58 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-latest as install
+FROM onosproject/onos:2.5.8 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-latest
+FROM onosproject/onos:2.5.8
 
 # The ENV settings must be replicated below as they are not shared between stages
 ENV ONOS=/root/onos