surfaceflinger: fix mUseHwcVirtualDisplays logging

Test: log message is correct
Change-Id: I8752d886ce97eefa980ff4f64c4dc0688929f4f5
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 61488b6..7da01c9 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -351,7 +351,7 @@
 
     property_get("debug.sf.enable_hwc_vds", value, "0");
     mUseHwcVirtualDisplays = atoi(value);
-    ALOGI_IF(!mUseHwcVirtualDisplays, "Enabling HWC virtual displays");
+    ALOGI_IF(mUseHwcVirtualDisplays, "Enabling HWC virtual displays");
 
     property_get("ro.sf.disable_triple_buffer", value, "1");
     mLayerTripleBufferingDisabled = atoi(value);