Add API for tethering clients change

Add a onClientsChanged callback to OnTetheringEventCallback.

The callback will provide information on connected clients combining
at least DHCP leases and WiFi AP information (WiFi AP tethering used).

Test: atest TetheringTests
Bug: 135411507
Change-Id: I7065d081c11bc606d691f76ac8b499dd075d6504
5 files changed
tree: d37e53420a1b40745cf58faab9fdd6b8f915a00b
  1. Tethering/