Rename VkFunctorDrawable->VkInteropFunctorDrawable

The Vulkan functor is currently doing interop, calling into the real
OpenGL functor. We will be adding a real, non-interop Vulkan functor
soon. In order to enable that, this patch renames the existing
VkFunctorDrawable to VkInteropFunctorDrawable. That allows us to use the
name VkFunctorDrawable for the real functor.

Test: This is a simple rename. Existing unit tests should work.

BUG=115613038

Change-Id: I427ad4d17ee92c3832e7bace55450b41a036f557
diff --git a/libs/hwui/Android.bp b/libs/hwui/Android.bp
index f0053a4..17d2db71 100644
--- a/libs/hwui/Android.bp
+++ b/libs/hwui/Android.bp
@@ -176,7 +176,7 @@
         "pipeline/skia/SkiaRecordingCanvas.cpp",
         "pipeline/skia/SkiaVulkanPipeline.cpp",
         "pipeline/skia/VectorDrawableAtlas.cpp",
-        "pipeline/skia/VkFunctorDrawable.cpp",
+        "pipeline/skia/VkInteropFunctorDrawable.cpp",
         "renderstate/RenderState.cpp",
         "renderthread/CacheManager.cpp",
         "renderthread/CanvasContext.cpp",