ipmid: Change .H -> .hpp

Change-Id: Ia1ed05a533736105909717b86f16274b30d36401
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/ipmid.cpp b/ipmid.cpp
index c9c7dda..2689117 100644
--- a/ipmid.cpp
+++ b/ipmid.cpp
@@ -8,7 +8,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <map>
-#include "ipmid.H"
+#include "ipmid.hpp"
 #include <sys/time.h>
 #include <errno.h>
 #include <mapper.h>