Rename libnetdbpf to libnetworkstats

Two reason for renaming:
1. Avoid module name collision in sc-mainline-prod branch.
2. The libnetdbpf was misnamed before.

Bug: 202086915
Test: atest libnetworkstats_test FrameworksNetTests
      ConnectivityCoverageTests FrameworksNetSmokeTests
      CtsAppOpsTestCases
Change-Id: I87fcf4b1a9d58780a45743a9aa91b9b936e54266
11 files changed