Updated git submodules

Project: dmaap/dbcapi master 87bf9245434ad317ea39a84a0099233197f3d7c2

Introduce useExisting query param for feeds/topics

Change-Id: I0eb7000cff801a7fb622c70d4621458fe3574fed
Signed-off-by: dglFromAtt <dgl@research.att.com>
Issue-ID: DMAAP-878


diff --git a/docs/submodules/dmaap/dbcapi.git b/docs/submodules/dmaap/dbcapi.git
index ebdb8b7..87bf924 160000
--- a/docs/submodules/dmaap/dbcapi.git
+++ b/docs/submodules/dmaap/dbcapi.git
@@ -1 +1 @@
-Subproject commit ebdb8b74c1d10e4bdc477c0f5e61311a9bfd9ead
+Subproject commit 87bf9245434ad317ea39a84a0099233197f3d7c2