Updating BUCK files to match pom.xml changes

Change-Id: I7fb4bf2acdc2a8933f1037fdbdb6b6ca00ffff1e
diff --git a/apps/cpman/api/BUCK b/apps/cpman/api/BUCK
index 1d410b0..293e8c2 100644
--- a/apps/cpman/api/BUCK
+++ b/apps/cpman/api/BUCK
@@ -6,6 +6,7 @@
 
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',
+    '//core/store/serializers:onos-core-serializers',
  ]
 
 TEST_DEPS = [