Currently, NetworkCapabilities's equals and hashCode methods
ignore mOwnerUID. This is confusing because it is inconsistent
with pretty much every other member of this class.
Bug: 175188445
Test: atest CtsNetTestCases:NetworkAgentTest \
CtsNetTestCases:Ikev2VpnTest \
CtsNetTestCases:VpnServiceTest HostsideVpnTests \
CtsNetTestCases:android.net.cts.ConnectivityDiagnosticsManagerTest \
ConnectivityServiceTest com.android.server.connectivity.VpnTest
Change-Id: I2348b7a35f32a931687f2d3c2fa57620a12fe06f
46fd589d89