Apply misc-include-cleaner fixes

misc-include-cleaner seems to have found a lot more things all of a
sudden.  Unclear why the result has changed, but we can just fix the
issues.

Tested: Clang-tidy now passes.  Code compiles.

Change-Id: Iab045cc183f0daef663b4d5ac901200a42807987
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/src/mcu/MCUTempSensor.hpp b/src/mcu/MCUTempSensor.hpp
index 2948af3..9f441df 100644
--- a/src/mcu/MCUTempSensor.hpp
+++ b/src/mcu/MCUTempSensor.hpp
@@ -1,10 +1,13 @@
 #pragma once
+#include "Thresholds.hpp"
+
+#include <boost/asio/io_context.hpp>
 #include <boost/asio/steady_timer.hpp>
-#include <boost/container/flat_map.hpp>
+#include <sdbusplus/asio/connection.hpp>
+#include <sdbusplus/asio/object_server.hpp>
 #include <sensor.hpp>
 
-#include <chrono>
-#include <limits>
+#include <cstdint>
 #include <memory>
 #include <string>
 #include <vector>