Add missing include

list was included through a dependency on sdbusplus which no longer
provides it, so it needs to be explicitly included here.

Change-Id: Iad2862e06fd31a95b9bbecb7246504833bc5f42d
Signed-off-by: Jason M. Bills <jason.m.bills@intel.com>
diff --git a/ipmbbridged.cpp b/ipmbbridged.cpp
index 26864b8..366707f 100644
--- a/ipmbbridged.cpp
+++ b/ipmbbridged.cpp
@@ -23,6 +23,7 @@
 #include <boost/asio/write.hpp>
 #include <filesystem>
 #include <fstream>
+#include <list>
 #include <nlohmann/json.hpp>
 #include <phosphor-logging/log.hpp>
 #include <tuple>