Changes to handle redesign of olt reconnect/reboot

Change-Id: I4d75615465f689b5a84676b4fd849579168feb1e
diff --git a/protos/voltha_protos/common.proto b/protos/voltha_protos/common.proto
index f7efff6..7ff3229 100755
--- a/protos/voltha_protos/common.proto
+++ b/protos/voltha_protos/common.proto
@@ -81,6 +81,9 @@
 
         // The device is in reconciling failed
         RECONCILING_FAILED = 7;
+
+        // The device has rebooted
+        REBOOTED = 8;
     }
 }