Add readiness dependency on aaf

Also some changes for:
- optionally deploy postgres for dmaap-bc. Useful for quick dev deployments
- correct external host IP address for windriver AAF

Change-Id: I5fd74df4a0e5e3537d9573ed8d3f9b87da41689e
Signed-off-by: dglFromAtt <dgl@research.att.com>
Issue-ID: DMAAP-1138
diff --git a/kubernetes/dmaap/components/dmaap-bc/requirements.yaml b/kubernetes/dmaap/components/dmaap-bc/requirements.yaml
index 61c265f..ff249ee 100644
--- a/kubernetes/dmaap/components/dmaap-bc/requirements.yaml
+++ b/kubernetes/dmaap/components/dmaap-bc/requirements.yaml
@@ -19,3 +19,4 @@
   - name: postgres
     version: ~4.x-0
     repository: '@local'
+    condition: PG.enabled