Move GraphicBuffer to graphics package

Test: locally tested Bitmap.createHardwareBitmap method
bug: 30999911
Change-Id: Iad432577f26f2362ede9e77cd8a5425c010692e5
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index a13ebaf..0d1b803 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -60,7 +60,6 @@
     android_graphics_drawable_VectorDrawable.cpp \
     android_view_DisplayEventReceiver.cpp \
     android_view_DisplayListCanvas.cpp \
-    android_view_GraphicBuffer.cpp \
     android_view_HardwareLayer.cpp \
     android_view_InputChannel.cpp \
     android_view_InputDevice.cpp \
@@ -120,6 +119,7 @@
     android/graphics/FontFamily.cpp \
     android/graphics/CreateJavaOutputStreamAdaptor.cpp \
     android/graphics/GIFMovie.cpp \
+    android/graphics/GraphicBuffer.cpp \
     android/graphics/Graphics.cpp \
     android/graphics/HarfBuzzNGFaceSkia.cpp \
     android/graphics/Interpolator.cpp \