pld: add support for cologne chip gatemate fpgas

Change-Id: I0bf5a52ee6a7f0287524619114eba0cfccf6ac81
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7565
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

tcl/board/gatemate_eval.cfg

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# GateMateTM FPGA Evaluation Board
+# https://www.colognechip.com/programmable-logic/gatemate-evaluation-board/
+#
+
+adapter driver ftdi
+ftdi vid_pid 0x0403 0x6010
+
+ftdi channel 0
+ftdi layout_init 0x0014 0x011b
+reset_config none
+transport select jtag
+adapter speed 6000
+
+source [find fpga/gatemate.cfg]