Updating test sources in several BUCK files

Change-Id: I17b83cb978f7b8fc1d31a1e96bec59a077dbdfbb
diff --git a/apps/proxyarp/BUCK b/apps/proxyarp/BUCK
index 8c7328e..db784ae 100644
--- a/apps/proxyarp/BUCK
+++ b/apps/proxyarp/BUCK
@@ -1,5 +1,5 @@
 SRC = 'src/main/java/org/onosproject/**/'
-TEST = 'src/main/java/org/onosproject/**/'
+TEST = 'src/test/java/org/onosproject/**/'
 
 CURRENT_NAME = 'onos-app-proxyarp'
 CURRENT_TARGET = ':' + CURRENT_NAME