Tools: Topology2: SDW: Use for PCH DMIC IIR type with +20 dB gain

The existing default is high-pass 40 Hz with 0 dB gain. This
change amplifies captured sound from DMIC by 20 dB. The same
amplifying IIR type is used in hda-generic.

The change is for now, but not the final solution. After we have
UCM2 control for capture processing in SOF we can shift applying
more gain to the DRC component that will provide more robustness
with silent and loud environments.

Signed-off-by: Seppo Ingalsuo <[email protected]>

tools/topology/topology2/cavs-sdw.conf

@@ -86,6 +86,7 @@ Define {
         EFX_SPK_DRC_PARAMS passthrough
         EFX_MIC_TDFB_PARAMS passthrough
         EFX_MIC_DRC_PARAMS passthrough
+        DMIC0_DAI_EQIIR "highpass_40hz_20db"
 }
 
 # override defaults with platform-specific config