Fix INFO.yaml files

Proper syntax for INFO.yaml requires the first
line to be "---" which was previously removed.
Re-adding this missing line.

Issue-ID: CIMAN-387
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: I37684b4614326eb5bfac668c4520880012de46e0
diff --git a/INFO.yaml b/INFO.yaml
index c971804..856e274 100644
--- a/INFO.yaml
+++ b/INFO.yaml
@@ -1,3 +1,4 @@
+---
 project: 'dcaegen2-services-pm-mapper'
 project_creation_date: '2018-07-11'
 project_category: ''