Allow multichannel effects

Test: Solo Tester with mutichannel file
Bug: 70038539
Change-Id: Id2e47eef62e55710bb6eda54c1f737aa3a3ce6bc
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index eea3208..2327bb9 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -173,6 +173,8 @@
     bool    mSupportsFloat;         // effect supports float processing
     sp<EffectBufferHalInterface> mInConversionBuffer;  // Buffers for HAL conversion if needed.
     sp<EffectBufferHalInterface> mOutConversionBuffer;
+    uint32_t mInChannelCountRequested;
+    uint32_t mOutChannelCountRequested;
 #endif
 };