audio: adjust the digital gain for speaker-mic

add mic gain on path "speaker-mic" from 0 to 22

Bug: 228224014
Test: audio record
Signed-off-by: Carter Hsu <carterhsu@google.com>
Change-Id: Idafad36fdfb5c5f54e2ad3c1718b814b956ac17c
diff --git a/audio/oriole/config/mixer_paths.xml b/audio/oriole/config/mixer_paths.xml
index 55d5252..a39fcd0 100644
--- a/audio/oriole/config/mixer_paths.xml
+++ b/audio/oriole/config/mixer_paths.xml
@@ -671,7 +671,7 @@
     </path>
 
     <path name="speaker-mic-post">
-        <ctl name="MIC Record Soft Gain (dB)" value="0"/>
+        <ctl name="MIC Record Soft Gain (dB)" value="22"/>
     </path>
 
     <path name="voice-speaker-mic">
diff --git a/audio/raven/config/mixer_paths.xml b/audio/raven/config/mixer_paths.xml
index 55d5252..a39fcd0 100644
--- a/audio/raven/config/mixer_paths.xml
+++ b/audio/raven/config/mixer_paths.xml
@@ -671,7 +671,7 @@
     </path>
 
     <path name="speaker-mic-post">
-        <ctl name="MIC Record Soft Gain (dB)" value="0"/>
+        <ctl name="MIC Record Soft Gain (dB)" value="22"/>
     </path>
 
     <path name="voice-speaker-mic">