Merge "Make IpSecManager.DIRECTION_FWD @SystemApi" am: d793de23f0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1928463

Change-Id: Ifc4c16988891fd67f8b04128b55a5f57109c7490
tree: fae196c076680d3767b34a26147fdb82b3400f1b
  1. framework/
  2. framework-t/
  3. service-t/
  4. services/
  5. tests/