ch4/ofi: include ofi_impl.h in ofi_gpu_pipeline.c

It is needed to compile under noinline configuration.

Author: hzhou

src/mpid/ch4/netmod/ofi/ofi_gpu_pipeline.c

@@ -4,6 +4,7 @@
  */
 
 #include "mpidimpl.h"
+#include "ofi_impl.h"
 #include "mpir_async_things.h"
 
 struct chunk_req {