sysinit.target: Don't depend on systemd-tmpfiles-setup.service

systemd-tmpfiles-setup.service pulls in local-fs.target, which
interferes with NixOps' send-keys feature (since sshd.service depends
indirectly on sysinit.target). Since in NixOS we don't use
systemd-tmpfiles for creating files (that's done by activation scripts
and preStart scripts), it's not a problem to start it a bit later.

Backport: 14.04

pkgs/os-specific/linux/systemd/default.nix

@@ -3,6 +3,7 @@
 , glib, kbd, libxslt, coreutils, libgcrypt, sysvtools, docbook_xsl
 , kexectools, libmicrohttpd, linuxHeaders
 , python ? null, pythonSupport ? false
+, autoreconfHook
 }:
 
 assert stdenv.isLinux;
@@ -28,6 +29,7 @@ stdenv.mkDerivation rec {
     [ pkgconfig intltool gperf libcap kmod xz pam acl
       /* cryptsetup */ libuuid m4 glib libxslt libgcrypt docbook_xsl
       libmicrohttpd linuxHeaders
+      autoreconfHook
     ] ++ stdenv.lib.optional pythonSupport python;
 
   configureFlags =