Migrate IPsec CTS out of tests/tests/net

Bug: 170487836
Test: atest CtsIkeTestCases
Change-Id: I08f069c2a11f3daa3f0332c631055a1e0be7ce7b
24 files changed
tree: 0b514bde1c12fb7b3870217e1a3c12b47da9e495
  1. tests/