Check if .fossa.yml exists in OMEC FOSSA Jenkins Jobs

Change-Id: Ibd314f0c5f2259843f80b0dc3329cb9eba3b5429
diff --git a/jjb/pipeline/omec-fossa-scan.groovy b/jjb/pipeline/omec-fossa-scan.groovy
index c70f3eb..c7a3f3f 100644
--- a/jjb/pipeline/omec-fossa-scan.groovy
+++ b/jjb/pipeline/omec-fossa-scan.groovy
@@ -81,6 +81,12 @@
 
                         echo "Testing project: ${params.project}"
 
+                        if [ ! -f ".fossa.yml" ]
+                        then
+                          echo ".fossa.yml not found. This file is mandatory for the test to proceed."
+                          exit 1
+                        fi
+
                         echo "Run 'fossa init'"
                         fossa init --no-ansi --verbose