Revert "Move Inet[4]AddressUtils to libs/net"

This reverts commit 57d68e3c55176083ba40947be8f335534d958006.

Reason for revert: Breaks the build b/160390899

Merged-In: Icd141a992c46290c74929785e261a1cd57bc001b
Change-Id: Ie10e66f61393602f17fbb61bf17230b176bf1f44
13 files changed