Do not clip scaled Launcher icons on hover.

Include change for setting the hover state flag programatically, as FastBitmapDrawable does not currently support DeviceConfig flags.

Fix: 243191650
Test: FastBitmapDrawableTest. Screenshot tests in another cl.
Flag: ENABLE_CURSOR_HOVER_STATES
Change-Id: I0eb796ae62e571a3287132bfcb99c4fca1e2fbe4

src/com/android/launcher3/CellLayout.java

@@ -245,6 +245,7 @@ public class CellLayout extends ViewGroup {
         // the user where a dragged item will land when dropped.
         setWillNotDraw(false);
         setClipToPadding(false);
+        setClipChildren(false);
         mActivity = ActivityContext.lookupContext(context);
         DeviceProfile deviceProfile = mActivity.getDeviceProfile();