vncflinger: Replace create|destroyDisplay with aosp changes

after https://github.com/omnirom/android_frameworks_native/commit/d53801c5273e34bc767e606454d32aa50f38ece8

Change-Id: I3606b1926a3a0e397e575c2f005a858d41893be8
diff --git a/src/VirtualDisplay.cpp b/src/VirtualDisplay.cpp
index 3822f14..f9019c8 100644
--- a/src/VirtualDisplay.cpp
+++ b/src/VirtualDisplay.cpp
@@ -51,7 +51,7 @@
 
     mCpuConsumer->setFrameAvailableListener(listener);
 
-    mDisplayToken = SurfaceComposerClient::createDisplay(String8("VNC-VirtualDisplay"), false /*secure*/);
+    mDisplayToken = SurfaceComposerClient::createVirtualDisplay("VNC-VirtualDisplay", false /*secure*/);
 
     SurfaceComposerClient::Transaction t;
     t.setDisplaySurface(mDisplayToken, mProducer);
@@ -66,7 +66,7 @@
 VirtualDisplay::~VirtualDisplay() {
     mCpuConsumer.clear();
     mProducer.clear();
-    SurfaceComposerClient::destroyDisplay(mDisplayToken);
+    SurfaceComposerClient::destroyVirtualDisplay(mDisplayToken);
 
     ALOGV("Virtual display destroyed");
 }