Fix API Review issues.

Modify the method name in LinkProperties.

Bug: 126699682
Test: make cts passed.
Change-Id: I3729e8915a8eff36e8de9035b5bf1571f8609e42

tests/cts/net/src/android/net/cts/DnsTest.java

@@ -287,7 +287,7 @@ public class DnsTest extends AndroidTestCase {
         final NetworkCallback callback = new NetworkCallback() {
             @Override
             public void onLinkPropertiesChanged(Network network, LinkProperties lp) {
-                if (lp.hasGlobalIPv6Address()) {
+                if (lp.hasGlobalIpv6Address()) {
                     latch.countDown();
                 }
             }