Move android.net.util.IpUtilsTest into a util/ directory

This makes the file structure match the package declaration.

Bug: None
Change-Id: Id6999e1857322f6dfd4caf805002398f08c378d6
Test: Eclipse stops complaining.
(cherry picked from commit 5b9903189c8a185efc8a2a64af34b7cde6f3bfe1)
1 file changed