STC drivers test now uses a driver that is always present; added buck build for corsa driver

Change-Id: I5310c54bb295f86a6f384a0f4bf18ed75cda1ef5
diff --git a/BUCK b/BUCK
index 7354d04..4f6c859 100644
--- a/BUCK
+++ b/BUCK
@@ -73,8 +73,9 @@
 ]
 
 APPS = [
-    #Drivers
+    # Drivers
     '//drivers/default:onos-drivers-default-oar',
+    '//drivers/corsa:onos-drivers-corsa-oar',
 
     # Providers
     '//providers/bgp:onos-providers-bgp-oar',