c++ify more stuff

Source/hoc-clk/sysmodule/src/board/board_freq.hpp

@@ -26,10 +26,10 @@
 
 #pragma once
 #include <hocclk.h>
-#include <i2c.h>
-#include <max17050.h>
+#include <i2c.hpp>
+#include <max17050.hpp>
 #include <switch.h>
-#include <tmp451.h>
+#include <tmp451.hpp>
 
 #include "../file/errors.hpp"
 #include "../hos/apm_ext.h"