Rename YV12 to I420.

Change-Id: I453b7044bf46950ef67091f3417ed3e6a65086a0
diff --git a/libvideoeditor/lvpp/Android.mk b/libvideoeditor/lvpp/Android.mk
index 7478ba5..fdcd316 100755
--- a/libvideoeditor/lvpp/Android.mk
+++ b/libvideoeditor/lvpp/Android.mk
@@ -37,7 +37,7 @@
     AudioPlayerBase.cpp \
     PreviewPlayerBase.cpp \
     PreviewRenderer.cpp \
-    YV12ColorConverter.cpp \
+    I420ColorConverter.cpp \
     NativeWindowRenderer.cpp
 
 LOCAL_MODULE_TAGS := optional