CCodec: calculate max dequeued buffer count

Bug: 118397206
Test: atest CtsMediaTestCases -- --module-arg CtsMediaTestCases:size:small
Change-Id: I6a9089feae3b91c3a91c784d4aa903bbf9277846
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.h b/media/codec2/sfplugin/CCodecBufferChannel.h
index 9ce886a..1ea29b4 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.h
+++ b/media/codec2/sfplugin/CCodecBufferChannel.h
@@ -250,6 +250,7 @@
     struct OutputSurface {
         sp<Surface> surface;
         uint32_t generation;
+        int maxDequeueBuffers;
     };
     Mutexed<OutputSurface> mOutputSurface;