rename frup.h -> frup.hpp

This header contains c++ code.

Change-Id: I4bc6cf0ddfbdc6ac4d93580a5203bb59537bbb04
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/writefrudata.cpp b/writefrudata.cpp
index bf9ae7f..00d5b5b 100644
--- a/writefrudata.cpp
+++ b/writefrudata.cpp
@@ -13,7 +13,7 @@
 #include <fstream>
 #include <sstream>
 #include <mapper.h>
-#include "frup.h"
+#include "frup.hpp"
 #include "fru-area.hpp"
 #include "fru-gen.hpp"
 #include <sdbusplus/server.hpp>