Move BakedOpDispatcher to separate file

Change-Id: If7aad6db6b7e54a33eac9b9eddbe8cd844207282
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index cc68fb2..09b2115 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -101,6 +101,7 @@
 
 ifeq (true, $(HWUI_NEW_OPS))
     hwui_src_files += \
+        BakedOpDispatcher.cpp \
         BakedOpRenderer.cpp \
         OpReorderer.cpp \
         RecordingCanvas.cpp