intel_debug/suggestions.html#digital-mic-issues has incorrect arecord command option

[pfalcon]

In the section https://thesofproject.github.io/latest/getting_started/intel_debug/suggestions.html#digital-mic-issues, there's a command quoted:

arecord -Dhw:0,6 -c4 -r48000 -sS32_LE -d 10 test.wav

It leads to:

arecord: main:668: invalid samples argument 'S32_LE'

Apparently, the option should be -fS32_LE .

[plbossart]

that's correct, feel free to send a patch :-)

[lgirdwood]

@jsarha can you take this fix. Thanks.