VOL-4670: Fix for flowIDsForGem cache in openolt adapter
          resource manager is not updated on adapter restarts

- The cache flowIDsForGem is empty on adapter restarts.
  So use GetFlowIDsForGem API to update the cache and use it.

VOL-4672: Stale etcd data in openolt adapter after olt device delete

- If OLT device is getting deleted ignore ChildDeviceLost processing.
  The ChildDeviceLost could create entries already cleaned up by
  OLT device delete processing under some race conditions.

Change-Id: I535d9c968acb6bcee897fea49c78362230a52ac9
diff --git a/VERSION b/VERSION
index af8c8ec..f8b9971 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.2.2
+4.2.3-dev