[TEST] Volume LLEXT
this includes #9151 and depends on not yet merged Tephyr PRs, collected as a test in https://github.com/zephyrproject-rtos/zephyr/pull/73274
Zephyr LLEXT regression caused by https://github.com/zephyrproject-rtos/zephyr/pull/73949 lead to https://sof-ci.01.org/sofpr/PR9172/build5783/devicetest/index.html?model=MTLP_RVP_HDA&testcase=check-playback-10sec
Sparse failures seem to be caused by #8919 @andyross
Sparse failures seem to be caused by https://github.com/thesofproject/sof/pull/8919 @andyross
Yes, this was merged broken. Fixup from Andy: #9265
superseded by multiple other PRs e.g. #9453