update list of architectures
update list of architectures

cf. column "Machine (-m) POSIX" on https://en.wikipedia.org/wiki/Uname

usnistgov/chimad-phase-field,usnistgov/chimad-phase-field,wd15/chimad-phase-field,wd15/chimad-phase-field,wd15/chimad-phase-field,usnistgov/chimad-phase-field