Olimex FT2232H JTAG adapters

Add interface configs for two new high speed JTAG
adapters from Olimex.  They need some other speed
related tweaks to work well at high speed.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

tcl/interface/olimex-arm-usb-ocd-h.cfg

+#
+# Olimex ARM-USB-OCD-H
+#
+# http://www.olimex.com/dev/arm-usb-ocd.html
+#
+
+interface ft2232
+ft2232_device_desc "Olimex OpenOCD JTAG ARM-USB-OCD-H"
+ft2232_layout olimex-jtag
+ft2232_vid_pid 0x15ba 0x002b
+

tcl/interface/olimex-arm-usb-tiny-h.cfg

+#
+# Olimex ARM-USB-TINY-H
+#
+# http://www.olimex.com/dev/arm-usb-tiny-h.html
+#
+
+interface ft2232
+ft2232_device_desc "Olimex OpenOCD JTAG ARM-USB-TINY-H"
+ft2232_layout olimex-jtag
+ft2232_vid_pid 0x15ba 0x002a
+