SurfaceFlinger: Fix triple buffering variable naming confusion

Bug: 68987822
Test: all SF tests
Change-Id: I51bc45d0756614e224bfac024c7568266fdad345
diff --git a/services/surfaceflinger/BufferQueueLayer.cpp b/services/surfaceflinger/BufferQueueLayer.cpp
index 70d52f1..3341b98 100644
--- a/services/surfaceflinger/BufferQueueLayer.cpp
+++ b/services/surfaceflinger/BufferQueueLayer.cpp
@@ -454,7 +454,8 @@
     mConsumer->setContentsChangedListener(this);
     mConsumer->setName(mName);
 
-    if (mFlinger->isLayerTripleBufferingDisabled()) {
+    // BufferQueueCore::mMaxDequeuedBufferCount is default to 1
+    if (!mFlinger->isLayerTripleBufferingDisabled()) {
         mProducer->setMaxDequeuedBufferCount(2);
     }