This is the bulk of pin control changes for the v3.20 cycle:

- Framework changes and enhancements:
  - Passing -DDEBUG recursively to subdir drivers so we get
    debug messages properly turned on.
  - Infer map type from DT property in the groups parsing code
    in the generic pinconfig code.
  - Support for custom parameter passing in generic pin config.
    This is used when you are using the generic pin config, but
    want to add a few custom properties that no other driver
    will use.

- New drivers:
  - Driver for the Xilinx Zynq
  - Driver for the AmLogic Meson SoCs

- New features in drivers:
  - Sleep support (suspend/resume) for the Cherryview driver
  - mvebeu a38x can now mux a UART on pins MPP19 and MPP20
  - Migrated the qualcomm driver to generic pin config handling
    of extended config options in the core code.
  - Support BUS1 and AUDIO in the Exynos pin controller.
  - Add some missing functions in the sun6i driver.
  - Add support for the A31S variant in the sun6i driver.
  - EMEv2 support in the Renesas PFC driver.
  - Ass support for Qualcomm MSM8916 in the qcom driver.

- Deleted features
  - Drop support for the SiRF Marco that was never released to
    the market.
  - Drop SH7372 support as the support for this platform is
    removed from the kernel.
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