arm64: dts: imx8mp: Add initial support for Ultratronik imx8mp-ultra-mach-sbc board
Add initial device tree support for the Ultratronik Ultra-MACH SBC
based on the NXP i.MX8M Plus SoC with 2GB LPDDR4.
The board features:
- 1 x USB 2.0 Host
- 1 x USB 2.0 via USB-C
- Debug UART + 1 x UART + 1 x USART
- SD card and eMMC support
- 2 x Ethernet (RJ45)
- HDMI
This initial DTS enables basic board support for booting via
SD card or eMMC.