Refactor buck external dependencies

Change-Id: Ia4b99493407eb7d4e893804cba6b944f758f085e
diff --git a/apps/yang-gui/BUCK b/apps/yang-gui/BUCK
index 319dbf6..772b069 100644
--- a/apps/yang-gui/BUCK
+++ b/apps/yang-gui/BUCK
@@ -1,5 +1,7 @@
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',
+    '//lib:JACKSON',
+    '//lib:ONOS_YANG',
     '//lib:onos-yang-runtime',
     '//apps/yang:onos-apps-yang',
 ]