[VOL-5245] branch and release repo:voltha-lib-go

VERSION
-------
  o Post release checkin, update VERISON to 7.6.0-dev
  o to avoid conflicts with the 7.5.x release branch.

Change-Id: I19a48b92b891bbb9085a5479743c232ad448e91c
diff --git a/VERSION b/VERSION
index a5f017a..0be83e5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-7.5.1
+7.6.0-dev