ARM: dts: imx6ull: Add chargebyte Tarragon support

This adds the support for chargebyte Tarragon, which is a Electrical
Vehicle Supply Equipment (EVSE) for AC charging stations
(according IEC 61851, ISO 15118).

The Tarragon board based on a i.MX6ULL SoC and is available in 4 variants
(Master, Slave, SlaveXT, Micro), which provides more or less peripheral.

Supported features:
  * 512 MB DDR RAM
  * eMMC
  * Debug UART
  * 100 Mbit Ethernet
  * USB 2.0 Host interface
  * Powerline communication (QCA700x)
  * 2x RS485
  * Digital in- and outputs (12 V)
  * One-Wire master for external temp sensors
  * 2x relay outputs
  * 2x motor interfaces

Link: https://chargebyte.com/products/charging-station-communication/charge-control-c
Signed-off-by: Stefan Wahren <stefan.wahren@chargebyte.com>

arch/arm/boot/dts/Makefile

@@ -755,6 +755,10 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
 	imx6ull-phytec-segin-lc-rdk-nand.dtb \
 	imx6ull-phytec-tauri-emmc.dtb \
 	imx6ull-phytec-tauri-nand.dtb \
+	imx6ull-tarragon-master.dtb \
+	imx6ull-tarragon-micro.dtb \
+	imx6ull-tarragon-slave.dtb \
+	imx6ull-tarragon-slavext.dtb \
 	imx6ull-tqma6ull2-mba6ulx.dtb \
 	imx6ull-tqma6ull2l-mba6ulx.dtb \
 	imx6ulz-14x14-evk.dtb \