Don't use relative include path

The header base path is already in the include set.

Change-Id: Id83abaa921d720ae103e3281161b875fcf84493d


[ROCm/hip commit: bb6922b8a3]

projects/hip/lpl_ca/lpl.hpp

@@ -4,7 +4,7 @@
 
 #include "clara/clara.hpp"
 #include "pstreams/pstream.h"
-#include "../include/hip/hcc_detail/elfio/elfio.hpp"
+#include "hip/hcc_detail/elfio/elfio.hpp"
 
 #include <unistd.h>