API review: use getter to access field

Fields in KeepalivePacketData and InvalidPacketException are
changed to private and add setter/getter as API.

Bug: 151322799
Test: atest FrameworksNetTests
      atest FrameworksWifiTests
      atest FrameworksTelephonyTests: some failure in CarrierAppUtilsTest
Change-Id: Id7609f2f577947909b010e7b667eaf0abfc5d917
1 file changed
tree: 88797085c6fabf1d827054413c70660759b43ff1
  1. apex/
  2. service/
  3. PREUPLOAD.cfg