Update directory submodule to v1.2.5.1 release
Update directory submodule to v1.2.5.1 release

snoyberg/ghc,ezyang/ghc,sgillespie/ghc,mettekou/ghc,mettekou/ghc,vTurbine/ghc,snoyberg/ghc,snoyberg/ghc,tjakway/ghcjvm,shlevy/ghc,tjakway/ghcjvm,snoyberg/ghc,vikraman/ghc,mettekou/ghc,vikraman/ghc,mettekou/ghc,sdiehl/ghc,olsner/ghc,sdiehl/ghc,olsner/ghc,shlevy/ghc,olsner/ghc,vTurbine/ghc,mcschroeder/ghc,ezyang/ghc,oldmanmike/ghc,mettekou/ghc,sdiehl/ghc,sdiehl/ghc,sgillespie/ghc,oldmanmike/ghc,vikraman/ghc,shlevy/ghc,sdiehl/ghc,sdiehl/ghc,oldmanmike/ghc,mcschroeder/ghc,tjakway/ghcjvm,ezyang/ghc,oldmanmike/ghc,vikraman/ghc,mcschroeder/ghc,vTurbine/ghc,ezyang/ghc,olsner/ghc,mcschroeder/ghc,ezyang/ghc,vikraman/ghc,sgillespie/ghc,sgillespie/ghc,oldmanmike/ghc,sdiehl/ghc,oldmanmike/ghc,sgillespie/ghc,tjakway/ghcjvm,snoyberg/ghc,snoyberg/ghc,oldmanmike/ghc,vTurbine/ghc,mettekou/ghc,tjakway/ghcjvm,tjakway/ghcjvm,vTurbine/ghc,mettekou/ghc,shlevy/ghc,sgillespie/ghc,sgillespie/ghc,shlevy/ghc,ezyang/ghc,vTurbine/ghc,olsner/ghc,vikraman/ghc,olsner/ghc,tjakway/ghcjvm,snoyberg/ghc,mcschroeder/ghc,vTurbine/ghc,shlevy/ghc,ezyang/ghc,mcschroeder/ghc,olsner/ghc,shlevy/ghc,mcschroeder/ghc,vikraman/ghc