audio: codec_adapter: add llext support for dax

[checkupup]

LLEXT support for DAX.

[sofci]

Can one of the admins verify this patch?

reply test this please to run this test once

[checkupup]

This change encounters following errors when we run on MTL platform machine:

[   51.125310] <err> llext: do_llext_load: Failed to allocate extension symbol table, ret -12
[   51.125340] <err> lib_manager: llext_manager_link_single: linking failed: -12
[   51.125346] <err> lib_manager: lib_manager_module_create: lib_manager_allocate_module() failed!
[   51.125378] <err> ipc: ipc4_init_module_instance: error: failed to init module 1000 : 0
[   51.125385] <err> ipc: ipc_cmd: ipc4: MODULE_MSG failed with err 104

Seems like symbol table size has some limitation.

See
mtrace.log
for full logs.

See
build.log
for build info.

dax_dev_overlay.conf is:

CONFIG_COMP_MODULE_ADAPTER=y
CONFIG_COMP_DOLBY_DAX_AUDIO_PROCESSING=m
CONFIG_COMP_DOLBY_DAX_AUDIO_PROCESSING_MOCK=n
CONFIG_KCPS_DYNAMIC_CLOCK_CONTROL=n

I have no idea what the limitation is.