arm64: dts: freescale: Add devicetree support for Thor96 board

Add devicetree support for Thor96 board from Einfochips. This board is
one of the 96Boards Consumer Edition platform powered by the NXP
i.MX8MQ SoC.

Following are the features supported currently:

1. uSD
2. WiFi/BT
3. Ethernet
4. EEPROM (M24256)
5. NOR Flash (W25Q256JW)
6. 2xUSB3.0 ports and 1xUSB2.0 port at HS expansion

More information about this board can be found in Arrow website:
https://www.arrow.com/en/products/i.imx8-thor96/arrow-development-tools

Link to 96Boards CE Specification: https://linaro.co/ce-specification



Signed-off-by: Darshak Patel <darshak.patel@einfochips.com>
[Mani: cleaned up for upstream]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>