ofi: Explicitly include fi_errno.h

Libfabric versions before 1.12.0 did not include fi_errno.h from
fabric.h.  Explicitly include fi_errno.h to avoid compile error
on older versions of Libfabric.

Signed-off-by: Brian Barrett <bbarrett@amazon.com>

Author: bwbarrett

opal/mca/common/ofi/common_ofi.c

@@ -21,6 +21,7 @@
 #include <errno.h>
 #include <unistd.h>
 #include <rdma/fabric.h>
+#include <rdma/fi_errno.h>
 #ifdef HAVE_RDMA_FI_EXT_H
 #include <rdma/fi_ext.h>
 #endif