Enable anti-aliasing for clip-path in vector drawables.

I definitely do not know what I'm doing here, so please view with
skepticism. I don't know how to check if there are other similar calls
that should be updated.

To test this I changed the Lens icon in NexusLauncher to use clip-path.
You can see the diff here: https://screenshot.googleplex.com/AoXzx2iojWQSS9v

Bug: 200304852
Change-Id: I482920c3449fa9e89906b46631b44e6264a46e61
diff --git a/libs/hwui/VectorDrawable.cpp b/libs/hwui/VectorDrawable.cpp
index f116641..983c776 100644
--- a/libs/hwui/VectorDrawable.cpp
+++ b/libs/hwui/VectorDrawable.cpp
@@ -269,7 +269,7 @@
 
 void ClipPath::draw(SkCanvas* outCanvas, bool useStagingData) {
     SkPath tempStagingPath;
-    outCanvas->clipPath(getUpdatedPath(useStagingData, &tempStagingPath));
+    outCanvas->clipPath(getUpdatedPath(useStagingData, &tempStagingPath), true);
 }
 
 Group::Group(const Group& group) : Node(group) {