Register new Control.Host bus in ipmid

This sets up the framework for future commits to implement
the required interfaces and signals in Control.Host

Change-Id: I43cd7d3047ed9cfbf1a01e7ba3a0310e9d47c307
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
diff --git a/host-interface.cpp b/host-interface.cpp
index 010eef1..5c286eb 100644
--- a/host-interface.cpp
+++ b/host-interface.cpp
@@ -5,5 +5,11 @@
 namespace host
 {
 
+void Host::execute(Command command)
+{
+    // Future commits to build on
+    return;
+}
+
 } // namespace host
 } // namepsace phosphor