VOL-1868 Add voltha-simolt-adapter and voltha-simonu-adapter to manifest

Change-Id: Ia0686ee5f31aed7c844d3e76f8de3861085d689e
diff --git a/default.xml b/default.xml
index 1726707..19382ed 100644
--- a/default.xml
+++ b/default.xml
@@ -35,5 +35,6 @@
   <project path="voltha-go" name="voltha-go"/>
   <project path="voltha-openolt-adapter" name="voltha-openolt-adapter"/>
   <project path="voltha-protos" name="voltha-protos"/>
-
+  <project path="voltha-simolt-adapter" name="voltha-simolt-adapter"/>
+  <project path="voltha-simonu-adapter" name="voltha-simonu-adapter"/>
 </manifest>