Changed vBBU size to small to prevent memory error

Change-Id: I59131c88b3a3f1bd1a1b2c490337a10faa517a1b
diff --git a/roles/cord-profile/templates/mcord-services.yaml.j2 b/roles/cord-profile/templates/mcord-services.yaml.j2
index 52d0830..eca2d08 100644
--- a/roles/cord-profile/templates/mcord-services.yaml.j2
+++ b/roles/cord-profile/templates/mcord-services.yaml.j2
@@ -176,7 +176,7 @@
               node: trusty-server-multi-nic
               relationship: tosca.relationships.DefaultImage
           - default_flavor:
-              node: m1.xlarge
+              node: m1.small
               relationship: tosca.relationships.DefaultFlavor
           - connection_to_management:
               node: management