Make a copy of TunUtils and PacketUtils

Temporarily make copies. Eventually will statically include the
source files in CtsIkeTestCases

Bug: 148689509
Test: atest CtsIkeTestCases
Change-Id: I7dd5c8b849f0d987fa6d76bc5a0bc1a7eed49b0d
Merged-In: I7dd5c8b849f0d987fa6d76bc5a0bc1a7eed49b0d
(cherry picked from commit 52716ec0e6807e7c7c78d9789788a0de2bab8b06)
2 files changed
tree: e0758d3a1ff94a8a7bcfabb8c5c830908b341819
  1. tests/