tcl: add lattice ECP5 family support

Add support for ECP5 FPGA targets and board based on this chips:
Radiona ULX3S and Lambdaconcept ECPIX-5

Change-Id: I932fc6e2458cda7d63ac21579acddea5b53410bc
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-on: https://review.openocd.org/c/openocd/+/6112
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>

tcl/fpga/lattice_ecp5.cfg

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+if { [info exists CHIPNAME] } {
+	set _CHIPNAME $_CHIPNAME
+} else {
+	set _CHIPNAME ecp5
+}
+
+# Lattice ECP5 family
+# TAP IDs are extracted from BSDL files found on this page:
+# https://www.latticesemi.com/Products/FPGAandCPLD/ECP5
+#
+# 0x01111043 - LAE5UM_25F/LFE5UM_25F
+# 0x01112043 - LAE5UM_45F/LFE5UM_45F
+# 0x01113043 - LAE5UM_85F/LFE5UM_85
+# 0x21111043 - LFE5U_12F
+# 0x41111043 - LFE5U_25F
+# 0x41112043 - LFE5U_45F
+# 0x41113043 - LFE5U_85F
+# 0x81111043 - LFE5UM5G-25
+# 0x81112043 - LFE5UM5G-45
+# 0x81113043 - LFE5UM5G-85
+
+jtag newtap $_CHIPNAME tap -irlen 8 -irmask 0x83 -ircapture 0x1 \
+	-expected-id 0x01111043 -expected-id 0x01112043 -expected-id 0x01113043 \
+	-expected-id 0x21111043 -expected-id 0x41111043 -expected-id 0x41112043 \
+	-expected-id 0x41113043 -expected-id 0x81111043 -expected-id 0x81112043 \
+	-expected-id 0x81113043