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ASoC: SOF: ipc4: Add support for modular firmware releases #5270

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A modular SOF release consists of a base firmware and two libraries: <fw_filename>-openmodules.ri for processing (audio) modules <fw_filename>-debug.ri for debug and developer modules

To handle this new release model add infrastructure to try to load the two library after boot optionally.

This approach will allow flexibility on handling platforms in sof-bin with monolithic or modular configuration:
Monolithic release: base firmware only
Modular release: base firmware + openmodules + debug

The documentation update is: thesofproject/sof-docs#505

A modular SOF release consists of a base firmware and two libraries:
<fw_filename>-openmodules.ri for processing (audio) modules
<fw_filename>-debug.ri for debug and developer modules

To handle this new release model add infrastructure to try to load the two
library after boot optionally.

This approach will allow flexibility on handling platforms in sof-bin with
monolithic or modular configuration:
Monolithic release: base firmware only
Modular release: base firmware + openmodules + debug

Signed-off-by: Peter Ujfalusi <[email protected]>
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