arm64: dts: freescale: Add initial device tree for i.MX952

arm64: dts: freescale: Add initial device tree for i.MX952

i.MX952 is designed for AI-powered sensor fusion and vision sensing
applications, it features 4 Corte-A55, 1 Cortex-M33, 1 Cortex-M7 and
NXP eIQ NPU and advanced graphics, video and advanced security with
edgelock. Product info could be found at:
https://www.nxp.com/products/i.MX-952

The basic device tree includes:
- clock, pin, power header files
- device nodes: CPU[0-3], SCMI firmware, Interrupt Controller, Sys counter,
  eDMA, MU, SPI, UART, I2C, USB and etc

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>