use quotes for local headers

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I95f247bd17cffab8b9ef3337f48336f8d7059c2d
diff --git a/include/TachSensor.hpp b/include/TachSensor.hpp
index f79fb4d..8ab1083 100644
--- a/include/TachSensor.hpp
+++ b/include/TachSensor.hpp
@@ -1,12 +1,13 @@
 #pragma once
 
+#include "Thresholds.hpp"
+#include "sensor.hpp"
+
 #include <systemd/sd-journal.h>
 
-#include <Thresholds.hpp>
 #include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
 #include <sdbusplus/asio/object_server.hpp>
-#include <sensor.hpp>
 
 class PresenceSensor
 {