Exclude com.bankid.bus from provider installer

The addition of the ProviderInstallerImpl broke com.bankid.bus
(BankID säkerhetsapp). This app is essential to Swedish users since it
is effectively the de facto Swedish online id.

This issue is resolved by adding the app id to the existing black list.

Fixes microg#824

play-services-core/src/main/java/com/google/android/gms/common/security/ProviderInstallerImpl.java

@@ -34,6 +34,7 @@
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.security.Security;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
@@ -45,7 +46,7 @@
 
 public class ProviderInstallerImpl {
     private static final String TAG = "GmsProviderInstaller";
-    private static final List<String> DISABLED = Collections.singletonList("com.discord");
+    private static final List<String> DISABLED = Collections.unmodifiableList(Arrays.asList("com.discord", "com.bankid.bus"));
 
     public static void insertProvider(Context context) {
         String packageName = PackageUtils.packageFromProcessId(context, Process.myPid());