interface: opendous_ftdi config file added

This config file add support to the opendous cable based on the chip ft2232H,
using the ftdi interface driver.

Change-Id: I4491f99d7b14f7078a04583ef0c4acd8692c4349
Signed-off-by: Rodrigo Melo <rmelo@inti.gob.ar>
Reviewed-on: http://openocd.zylin.com/1097
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

tcl/interface/ftdi/opendous_ftdi.cfg

@@ -0,0 +1,17 @@
+#
+# Opendous
+#
+# http://code.google.com/p/opendous/wiki/JTAG
+#
+# According to the website, it is similar to jtagkey, but it uses channel B
+# (and it has a different pid number).
+#
+
+interface ftdi
+ftdi_device_desc "Dual RS232-HS"
+ftdi_vid_pid 0x0403 0x6010
+ftdi_channel 1
+
+ftdi_layout_init 0x0c08 0x0f1b
+ftdi_layout_signal nTRST -data 0x0100 -noe 0x0400
+ftdi_layout_signal nSRST -data 0x0200 -noe 0x0800