Allowing for null net caps in updateConfiguration

Marking NetworkCapabilities as nullable in updateConfiguration and
updating where needed to support this. This will allow callers of
the ethernet network management updateConfiguration API to use it
primarily for setting an ethernet network's IP configuration.

Bug: 222565654
Bug: 220017952
Bug: 210485380
Test: atest EthernetServiceTests
Change-Id: Ifd908639a00470e599fe1a15487cc6383a56b2f5
4 files changed
tree: 73751f6be3ed0c90745534f01e0384b6e43efb43
  1. java/
  2. tests/
  3. .gitignore
  4. Android.bp
  5. TEST_MAPPING