add config for Microchip SAMA5D27 SOM1 Kit1

... and related SAMA5D27 SoC.

Change-Id: Ic2584e3005ac691642dc2e5a8ee3fb8a4eacaa00
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-on: http://openocd.zylin.com/5275
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>

tcl/board/microchip_sama5d27_som1_kit1.cfg

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Microchip SAMA5D27-SOM1-EK1
+# https://www.microchip.com/DevelopmentTools/ProductDetails/PartNO/ATSAMA5D27-SOM1-EK1
+# This board provide two jtag interfaces:
+# J11 - 10 pin interface
+# J10 - USB interface connected to the J-Link-OB.
+#       This functionality is implemented with an ATSAM3U4C microcontroller and
+#       provides JTAG functions and a bridge USB/Serial debug port (CDC).
+#
+# Jumper J7 disables the J-Link-OB-ATSAM3U4C JTAG functionality.
+# - Jumper J7 not installed: J-Link-OB-ATSAM3U4C is enabled and fully functional.
+# - Jumper J7 installed: J-Link-OB-ATSAM3U4C is disabled and an external JTAG
+#   controller can be used through the 10-pin JTAG port J11.
+
+source [find interface/jlink.cfg]
+reset_config srst_only
+
+source [find target/at91sama5d2.cfg]