Also test for additional NetworkCallback calls

Specifcally:
    - onCapabilitiesChanged
    - onLinkPropertiesChanged
    - onNetworkSuspended

Test: as follows
    - built (bullhead)
    - flashed
    - booted
    - runtest frameworks-net passes
Bug: 32163131

Change-Id: Ie0f7c8ac21313b11980bb335c89ecde6fd8e311c