Use a std::literal for dbus wait duration

Change-Id: Iad1cf94b7665253fd25d0049af737c46b7f97796
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/manager.cpp b/manager.cpp
index c516d40..0c2a76d 100644
--- a/manager.cpp
+++ b/manager.cpp
@@ -15,8 +15,11 @@
  */
 #include <iostream>
 #include <exception>
+#include <chrono>
 #include "manager.hpp"
 
+using namespace std::literals::chrono_literals;
+
 namespace phosphor
 {
 namespace inventory
@@ -115,7 +118,7 @@
         try
         {
             _bus.process_discard();
-            _bus.wait(5000000);
+            _bus.wait((5000000us).count());
         }
         catch (const std::exception& e)
         {