Rename "retire" to "present" for consistency

The HWC2 model has no concept of retire fence beyond HWC2to1Adapter
All references to "retire" fence should be called "present"

Change-Id: I26540aad9e65f138a4df60a34eaee030f1c17567
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index 9de74d6..0511df2 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -241,7 +241,7 @@
     mDbgState = DBG_STATE_IDLE;
 
 #ifdef USE_HWC2
-    sp<Fence> retireFence = mHwc.getRetireFence(mDisplayId);
+    sp<Fence> retireFence = mHwc.getPresentFence(mDisplayId);
 #else
     sp<Fence> fbFence = mHwc.getAndResetReleaseFence(mDisplayId);
 #endif