fix(tree): import libfabric's container_of macro
Newer versions of libfabric are no longer defining this in
"rdma/fabric.h", but we were relying on it transiently. Bring it in-tree
to unblock compilation against libfabric master.
Signed-off-by: Nicholas Sielicki <nslick@amazon.com>
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.