Add bitmode for synchronous fifo if FT2232H

Add bitmode for synchronous fifo if FT2232H

Arg,

getting a one-line right didn't work out. Please disregards the first patch
and use appended patch instead

Changelog:
Appended small patch adds the bitmode (0x40) for synchronous fifo mode of
the FT2232H

--
Uwe Bonnes                bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
>From a470bfbdae1e78cc585bfe69b27ded88f4ba7349 Mon Sep 17 00:00:00 2001
From: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Date: Fri, 20 Nov 2009 17:31:26 +0100
Subject: Add bitmode value for synchronous fifo if FT2232H