Move NattKeepalivePacketData out of the framework

For implementing parcelable interface for NattKeepalivePacketData.
Move this class out of framework.jar and move to services.jar

This class is used in telephony-common.jar and it also loads
service.jar.

Bug: 33530442
Test: - build pass
      - atest NetworkStackTests
      - atest ConnectivityServiceTest

Change-Id: Id2fdec5c4015d2cefd8a93e0cfdcc3c304fc9b64
1 file changed
tree: 946d2140f0ce6c06c6065f53cfc396ca138e2a26
  1. core/
  2. services/
  3. tests/