Move trimV4AddrZeros to libs/net

The utility is @UnsupportedAppUsage, and also used by internal classes
like WifiTrackerLib or Mms, so it needs to be in a shared location.

Bug: 182859030
Test: atest NetworkStaticLibTests
Change-Id: Ia2be2ef62ea1e7dfdff1f54a14d8f2e282d36fca
2 files changed
tree: aa57e0bd39d1eb8343702f3d0739f1b28b3a18d1
  1. staticlibs/