Remove remaining references to SkCanvas::SaveFlags

One SkCanvas save flag reference snuck back in after the last
cleanup.  Convert to the new SaveFlags enum.

Change-Id: I9ba4b01a19bbb80276c84d30fd0d7b9513892cf9
diff --git a/libs/hwui/VectorDrawable.cpp b/libs/hwui/VectorDrawable.cpp
index c72f87d..541c799 100644
--- a/libs/hwui/VectorDrawable.cpp
+++ b/libs/hwui/VectorDrawable.cpp
@@ -460,7 +460,7 @@
 
     mPaint.setColorFilter(colorFilter);
 
-    int saveCount = outCanvas->save(SkCanvas::SaveFlags::kMatrixClip_SaveFlag);
+    int saveCount = outCanvas->save(SaveFlags::MatrixClip);
     outCanvas->translate(mBounds.fLeft, mBounds.fTop);
 
     // Handle RTL mirroring.