btl/uct: add support for using an another memory domain to form connections#12822

hjelmn wants to merge 2 commits intoopen-mpi:mainopen-mpi/ompi:mainfrom

hjelmn:update_btl_uct_to_support_alternate_means_of_connecting_endpoints_by_utilizing_tcp_on_systems_without_working_udhjelmn/ompi:update_btl_uct_to_support_alternate_means_of_connecting_endpoints_by_utilizing_tcp_on_systems_without_working_udCopy head branch name to clipboard