Use forceHwcCopyForVirtualDisplay in configStore

Test: Manual
Change-Id: Ie6f816cf8f48b1cca41d51f40e9f0ae49aef2908
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index ee2772a..5c0e084 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -255,6 +255,9 @@
 #ifdef USE_HWC2
     HWComposerBufferCache mHwcBufferCache;
 #endif
+
+
+    bool mForceHwcCopy;
 };
 
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