VOL-1967 Add voltha-api-server to go-manifest

Change-Id: I98c0dfe01e59124a33e680fb96e3a76836d4125b
diff --git a/default.xml b/default.xml
index 19382ed..5e09f05 100644
--- a/default.xml
+++ b/default.xml
@@ -37,4 +37,5 @@
   <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"/>
+  <project path="voltha-api-server" name="voltha-api-server"/>
 </manifest>