[BUG][CFL] System freeze when capture via both 2 DMIC at same time.

[ClarexZhou]

Describe the bug
System freeze when capture via both 2 DMIC at same time.

To Reproduce

1. Open one terminal, run 'arecord -Dhw:0,6 -r48000 -c2 -fs32_le -vv -i 1.wav'
2. Open one terminal, run 'arecord -Dhw:0,7 -r48000 -c2 -fs16_le -vv -i 2.wav'

frequency
100%

Actual result
System freeze

Expected result
Both capture works OK.

Environment
linux (topic/sof-dev): f745362
sof (master): fd6208d
Topology: file: sof-hda-generic-2.tplg same path as firmware
platform: CFL

only below message is got for system is freeze.
freeze2Dmic_soflogger.txt
freeze2Dmic_dmesg.txt

[xiulipan]

@jajanusz @lyakh
I checked the logs and found before Jul.24 all test case is passed. But from Jul.25 the test case is not pass. Linux is not changed between these two days.

Only un-test PR that merged on Jul.24 is #1592
The test case is test by CI on Jun.28 and not re-test.

Could you try to revert 8256465 and test again?

[xiulipan]

@ClarexZhou @jajanusz @lyakh
It seems this issue is already fixed by #1669

[dengyangchao]

Test it on CFL with test recipe as below, issue not reproduced. Close the bug.
Test recipe:
Firmware: f7809a2
Kernel: f745362
Topology:sof-hda-generic-2.tplg same path as firmware
platform: CFL