Fix ConnectivityServiceTest fail.

NetdService#getInstance() will get null object in
WrappedConnectivityService constructor. Then pass this null
INetd object to PermissionMonitor will case NPE in
PermissionMonitor#sendPackagePermissionsToNetd()

Bug: None
Test: atest FrameworksNetTests
Change-Id: Ia1c80f9600a19c4aaf3f3c1b497b355d96c49c8e
1 file changed