AudioFlinger: Create PatchPanel callback

Test: atest AudioTrackTest AudioRecordTest
Test: Camera YouTube
Bug: 291319167
Merged-In: I3b851a1b1b50edd76305957c8b91521e0cb1d23d
Change-Id: I3b851a1b1b50edd76305957c8b91521e0cb1d23d
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 034b0ea..61a543d 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -412,6 +412,7 @@
         mAAudioHwBurstMinMicros = getAAudioHardwareBurstMinUsecFromSystemProperty();
     }
 
+    mPatchPanel = IAfPatchPanel::create(sp<IAfPatchPanelCallback>::fromExisting(this));
     mMelReporter = sp<MelReporter>::make(sp<IAfMelReporterCallback>::fromExisting(this));
 }