irq-core-2020-10-12

 Core:
    - Allow trimming of interrupt hierarchy to support odd hardware setups
      where only a subset of the interrupts requires the full hierarchy.

    - Allow the retrigger mechanism to follow a hierarchy to simplify
      driver code.

    - Provide a mechanism to force enable wakeup interrrupts on suspend.

    - More infrastructure to handle IPIs in the core code

 Architectures:

    - Convert ARM/ARM64 IPI handling to utilize the interrupt core code.

 Drivers:

    - The usual pile of new interrupt chips (MStar, Actions Owl, TI PRUSS,
      Designware ICTL)

    - ARM(64) IPI related conversions

    - Wakeup support for Qualcom PDC

    - Prevent hierarchy corruption in the NVIDIA Tegra driver

    - The usual small fixes, improvements and cleanups all over the place.