ndn-tools: Update to the latest version

Change-Id: I6b2212996d690934c57aa862805a0f50baa4dcd9
diff --git a/ndn-tools/debian/control b/ndn-tools/debian/control
index bb74db2..48efc66 100644
--- a/ndn-tools/debian/control
+++ b/ndn-tools/debian/control
@@ -6,7 +6,7 @@
  python3 (>= 3.6.0),
  pkg-config (>= 0.29),
  libboost-all-dev (>= 1.65.1),
- libndn-cxx-dev (>= 0.8.0),
+ libndn-cxx-dev (>= 0.8.1),
  libpcap-dev,
  python3-sphinx (>= 1.6.0),
  git