making slide unlock on tablet have a larger radius

-removed assets from zygote because it was caching the incorrect mdpi assets
-increased radius on slide unlock for tablet

Bug: 5514500
Change-Id: I2e4705cb9c372ebb5baec7bb3dd7a34ced4f10ba

Conflicts:

	core/res/res/values-sw600dp/dimens.xml
4 files changed