Update OemNetworkPreferences to use 1:1 Map

Updated OemNetworkPreferences to use a Map instead of an Array of Arrays
(SparseArray<List<String>>). This is for two reasons: to make the API
simpler and also prevent issues with duplicate entries for packages
mapped to more than one preference which is not supported.

Bug: 176597181
Bug: 176494815
Test: atest FrameworksNetTests
Change-Id: I85363e28b46b89ae60a85219313c2a45bd5e7dd5
2 files changed
tree: 9163c1e3d69d7425ae51e25decd60fee23f3f3b9
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS