Merge branch 'sunplus/newsoc' into arm/newsoc

Merge "Sunplus SP7021 SoC support" from Qin Jian, applied
as patches:

 "Sunplus SP7021 is an ARM Cortex A7 (4 cores) based SoC. It integrates many
  peripherals (ex: UART, I2C, SPI, SDIO, eMMC, USB, SD card and etc.) into a
  single chip. It is designed for industrial control.

  SP7021 consists of two chips (dies) in a package. One is called C-chip
  (computing chip). It is a 4-core ARM Cortex A7 CPU. It adopts high-level
  process (22 nm) for high performance computing. The other is called P-
  chip (peripheral chip). It has many peripherals and an ARM A926 added
  especially for real-time control. P-chip is made for customers. It adopts
  low-level process (ex: 0.11 um) to reduce cost.

  Refer to (for documentations):
  https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview

  Refer to (applications):
  https://tibbo.com/store/plus1.html

  Refer to (applications):
  http://www.sinovoip.com.cn/ecp_view.asp?id=586"

I left out the clock controller driver, which is still not fully
reviewed. There have been 20 revisions of the platform code, and
everything else looks good enough, so I hope it's we can simplify
the process by separating it out again.

Link: https://lore.kernel.org/linux-arm-kernel/0c10fa4ccf3da5d92784b9bbd4177d1d2f1d62a0.1656396767.git.qinjian@cqplus1.com/
* sunplus/newsoc:
  ARM: dts: Add Sunplus SP7021-Demo-V3 board device tree
  ARM: sp7021_defconfig: Add Sunplus SP7021 defconfig
  ARM: sunplus: Add initial support for Sunplus SP7021 SoC
  irqchip: Add Sunplus SP7021 interrupt controller driver
  dt-bindings: interrupt-controller: Add bindings for SP7021 interrupt controller
  dt-bindings: clock: Add bindings for SP7021 clock driver
  reset: Add Sunplus SP7021 reset driver
  dt-bindings: reset: Add bindings for SP7021 reset driver
  dt-bindings: arm: sunplus: Add bindings for Sunplus SP7021 SoC boards