sound fixes for 5.3-rc4

Lots of small fixes at this time since we've received the ASoC
fix batch now.

- Some coverage in ASoC core mostly for minor issues like NULL
  checks for DPCM and proper error handling in DAI instantiation

- A collection of small device-specific changes in various ASoC
  codec and platform drivers

- OF-tree refcount fixes in a few ASoC drivers

- Fixes of memory leaks in the error paths of various ASoC / ALSA
  drivers

- A workaround for a long-standing issue on AMD HD-audio device

- Updates of MAINTAINERS, mail addresses, file permission fixups
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