[CORD-3254] Fix xosapi including google/api protos

annotations.proto and http.proto from google/api are needed for runtime
proto compilation.

Change-Id: Ib50f3c4a7e0b1d08406cac15611c12bd026dded1
diff --git a/lib/xos-api/MANIFEST.in b/lib/xos-api/MANIFEST.in
index 223efb9..ec41c17 100644
--- a/lib/xos-api/MANIFEST.in
+++ b/lib/xos-api/MANIFEST.in
@@ -1,2 +1,4 @@
 include requirements.txt
 include xosapi/VERSION
+include xosapi/chameleon_client/protos/google/api/annotations.proto
+include xosapi/chameleon_client/protos/google/api/http.proto