rocshmem_config.h has a different include path when installed and built-dir (#186)

* rocshmem_config.h needs to be in a similar directory structure for
includes to work when building testers in build, and from an installed
library

* Do not change installed rocshmem.hpp

src/memory/heap_type.hpp

@@ -25,7 +25,7 @@
 #ifndef LIBRARY_SRC_MEMORY_HEAP_TYPE_HPP_
 #define LIBRARY_SRC_MEMORY_HEAP_TYPE_HPP_
 
-#include "rocshmem_config.h"  // NOLINT(build/include_subdir)
+#include "rocshmem/rocshmem_config.h"  // NOLINT(build/include_subdir)
 #include "hip_allocator.hpp"
 
 /**

src/memory/hip_allocator.hpp

@@ -31,7 +31,7 @@
  * @brief Contains HIP wrapper class for memory allocator
  */
 
-#include "rocshmem_config.h"  // NOLINT(build/include_subdir)
+#include "rocshmem/rocshmem_config.h"  // NOLINT(build/include_subdir)
 #include "memory_allocator.hpp"
 
 #include <hip/hip_runtime_api.h>