Fix snapshot reference

Change-Id: I3c0ff0704f8a832ea202819f487a521ad62695bc
diff --git a/tools/build/onos-validate-change-version.excludes b/tools/build/onos-validate-change-version.excludes
index d2a0c01..222e791 100755
--- a/tools/build/onos-validate-change-version.excludes
+++ b/tools/build/onos-validate-change-version.excludes
@@ -36,3 +36,4 @@
 \./tools/build/buck-plugin/BUCK
 \./core/store/primitives/resources/impl/AtomixLeaderElectorCommands.java
 \./core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixLeaderElectorCommands.java
+\./core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixAtomicCounterMapCommands.java