Enable TripleBuffering on SF by default

Change-Id: I5958534133799419fa77c00536c68cacd1ccb6a9
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index c9445e7..01655c6 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -213,7 +213,7 @@
     ALOGI_IF(!mUseHwcVirtualDisplays, "Disabling HWC virtual displays");
 
     property_get("ro.sf.disable_triple_buffer", value, "0");
-    mLayerTripleBufferingDisabled = !atoi(value);
+    mLayerTripleBufferingDisabled = atoi(value);
     ALOGI_IF(mLayerTripleBufferingDisabled, "Disabling Triple Buffering");
 }