src: add missing headers

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I6043ef792c2ce0a8e7584a73f83ca365ec61794d
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index 9abde11..e3007cd 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -18,15 +18,23 @@
 #include "PSUSensor.hpp"
 #include "Utils.hpp"
 
+#include <array>
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/replace.hpp>
+#include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
 #include <filesystem>
 #include <fstream>
+#include <functional>
 #include <iostream>
 #include <regex>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
+#include <sdbusplus/bus/match.hpp>
+#include <string>
+#include <utility>
+#include <variant>
+#include <vector>
 
 static constexpr bool DEBUG = false;