Add link-related methods at NetlinkUtils

This CL adds static methods at NetlinkUtils class that send the
netlink message to kernel to configure the network interface up or down,
rename the interface, and query the interface.

Bug: 364501824
Test: NetworkStackIntegrationTests:android.net.ip.IpClientSignatureTest

Change-Id: Ie545a6617adff2601f405df01dea9edd59952a53
1 file changed