Upgrade the underlying NFD and ndn-cxx to version 0.6.1 and fixing compilation
Specific changes:
1) model: NetDeviceTransport uses the MTU of NS-3 netDevice
2) utils: Adapting to the updates of the ndn-cxx CustomClock abstraction
Change-Id: Ic0dba06a9afd66a810172d4a512f35f6df6b222a
Refs: #4471, #4514
diff --git a/.gitmodules b/.gitmodules
index eda145d..fb3347b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,8 @@
[submodule "NFD"]
path = NFD
url = https://github.com/named-data-ndnSIM/NFD
+ branch = NFD-0.6.1-ndnSIM
[submodule "ndn-cxx"]
path = ndn-cxx
url = https://github.com/named-data-ndnSIM/ndn-cxx
+ branch = ndn-cxx-0.6.1-ndnSIM