face: enable fragmentation and reassembly on unicast Ethernet faces

Change-Id: I81a065866610ec499a88b451bfaeea8ad40c17e2
Refs: #4011
diff --git a/daemon/face/ethernet-channel.cpp b/daemon/face/ethernet-channel.cpp
index bc149d2..a4d1907 100644
--- a/daemon/face/ethernet-channel.cpp
+++ b/daemon/face/ethernet-channel.cpp
@@ -199,7 +199,10 @@
 
   // else, create a new face
   GenericLinkService::Options options;
+  options.allowFragmentation = true;
+  options.allowReassembly = true;
   options.reliabilityOptions.isEnabled = wantLpReliability;
+
   auto linkService = make_unique<GenericLinkService>(options);
   auto transport = make_unique<UnicastEthernetTransport>(*m_localEndpoint, remoteEndpoint,
                                                          persistency, m_idleFaceTimeout);