ndns: Update for ndn-cxx 0.5.1

Change-Id: I8e9b1f80395bf8618a9f919c2b0d9b3ba546e3d3
diff --git a/ndns/debian/control b/ndns/debian/control
index 04e2542..fa2d352 100644
--- a/ndns/debian/control
+++ b/ndns/debian/control
@@ -5,7 +5,7 @@
  dh-systemd (>= 1.5),
  python (>= 2.7.0),
  pkg-config (>= 0.26),
- ndn-cxx-dev (>= 0.5.0),
+ ndn-cxx-dev (>= 0.5.1),
  liblog4cxx10-dev (>= 0.10.0)
 Standards-Version: 3.9.2
 Section: net
@@ -14,7 +14,7 @@
 Vcs-Browser: http://github.com/named-data/ndns
 
 Package: ndns
-Architecture: i386 amd64
+Architecture: i386 amd64 arm64 armel armhf ppc64el
 Depends: ${shlibs:Depends}, ${misc:Depends}, ndn-cxx, nfd
 Description: Domain Name Service for Named Data Networking
  NDNS is a completely distributed database system that largely mimics