Put desktop_terminal back the way it was

OK, looked into it some more and ultimately we had problems here
because of https://bugzilla.redhat.com/show_bug.cgi?id=1908791
in fact. The password prompt was taking far longer than usual to
appear because pam_fprintd was failing because of that bug. That
should be fixed with next Firefox build, so I think it's best to
just leave this as it was, because in the usual course of events
it works fine and it saves having another needle to maintain.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

tests/desktop_terminal.pm

@@ -12,7 +12,7 @@ sub run {
     # need to be root
     my $rootpass = get_var("ROOT_PASSWORD", "weakpassword");
     type_string "su\n", 20;
-    assert_screen "console_password_required";
+    wait_still_screen 3;
     # can't use type_safely for now as current implementation relies
     # on screen change checks, and there is no screen change here
     type_string "$rootpass\n", 1;