Add Openocd config that allows specifying Olimex serial

Change-Id: I3534c7d062cfe7f96de76e782f589acb7ec70ed9

util/openocd/interface/ftdi/olimex-arm-usb-tiny-h-serial.cfg

diff --git a/util/openocd/interface/ftdi/olimex-arm-usb-tiny-h-serial.cfg b/util/openocd/interface/ftdi/olimex-arm-usb-tiny-h-serial.cfg
new file mode 100644
index 0000000..891a96d
--- /dev/null
+++ b/util/openocd/interface/ftdi/olimex-arm-usb-tiny-h-serial.cfg
@@ -0,0 +1,15 @@
+#
+# Olimex ARM-USB-TINY-H
+#
+# http://www.olimex.com/dev/arm-usb-tiny-h.html
+#
+
+adapter driver ftdi
+ftdi_device_desc "Olimex OpenOCD JTAG ARM-USB-TINY-H"
+ftdi_vid_pid 0x15ba 0x002a
+ftdi_serial $_FTDI_SERIAL
+
+ftdi_layout_init 0x0808 0x0a1b
+ftdi_layout_signal nSRST -oe 0x0200
+ftdi_layout_signal nTRST -data 0x0100 -oe 0x0100
+ftdi_layout_signal LED -data 0x0800