test-hwc2: Added virtual Display tests

VirtualDisplay tests added.
Test: Ran on (heavily modified) ryu
Change-Id: I5cc92d11d4cde6c3407d71652f87ea3c3fb63228
diff --git a/services/surfaceflinger/tests/hwc2/Android.mk b/services/surfaceflinger/tests/hwc2/Android.mk
index 203ced5..6d20349 100644
--- a/services/surfaceflinger/tests/hwc2/Android.mk
+++ b/services/surfaceflinger/tests/hwc2/Android.mk
@@ -36,7 +36,9 @@
     libui \
     libgui \
     liblog \
-    libsync
+    libsync \
+    libskia \
+    android.hardware.graphics.common@1.0
 LOCAL_STATIC_LIBRARIES := \
     libbase \
     libadf \
@@ -49,6 +51,7 @@
     Hwc2TestLayers.cpp \
     Hwc2TestBuffer.cpp \
     Hwc2TestClientTarget.cpp \
-    Hwc2TestVirtualDisplay.cpp
+    Hwc2TestVirtualDisplay.cpp \
+    Hwc2TestPixelComparator.cpp
 
 include $(BUILD_NATIVE_TEST)