Add VPACLink interface definition

This patch adds definition file for the Voipac VPACLink JTAG adaptor. The
adaptor is combined JTAG/UART device.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

tcl/interface/vpaclink.cfg

@@ -0,0 +1,10 @@
+#
+# Voipac VPACLink
+#
+# http://voipac.com/27M-JTG-000
+#
+
+interface ft2232
+ft2232_device_desc "VPACLink A"
+ft2232_layout oocdlink
+ft2232_vid_pid 0x0403 0x6010