Use createStringArray instead of readStringArray

To prevent ProxyInfo calling hidden API, use public one -
Parcel#createStringArray() instead.

Bug: 170598012
Test: atest FrameworksNetTests
Change-Id: I1a5376872d743e1863982bb95d579aeba7159d33

core/java/android/net/ProxyInfo.java

@@ -355,7 +355,7 @@ public class ProxyInfo implements Parcelable {
                     port = in.readInt();
                 }
                 String exclList = in.readString();
-                String[] parsedExclList = in.readStringArray();
+                String[] parsedExclList = in.createStringArray();
                 ProxyInfo proxyProperties = new ProxyInfo(host, port, exclList, parsedExclList);
                 return proxyProperties;
             }