[firebase_auth] Fix onMethodCall missing for updatePhoneNumberCredential (#1609)

fixed missing onMethodCall in Android plugin for method "updatePhoneNumberCredential"
diff --git a/packages/firebase_auth/CHANGELOG.md b/packages/firebase_auth/CHANGELOG.md
index 753147d..12d60c3 100644
--- a/packages/firebase_auth/CHANGELOG.md
+++ b/packages/firebase_auth/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.11.1+5
+
+* Fix `updatePhoneNumberCredential` on Android.
+
 ## 0.11.1+4
 
 * Fix `updatePhoneNumberCredential` on iOS.
diff --git a/packages/firebase_auth/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java b/packages/firebase_auth/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java
index 5cce15d..1b69f71 100755
--- a/packages/firebase_auth/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java
+++ b/packages/firebase_auth/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java
@@ -139,6 +139,9 @@
       case "updateEmail":
         handleUpdateEmail(call, result, getAuth(call));
         break;
+      case "updatePhoneNumberCredential":
+        handleUpdatePhoneNumber(call, result, getAuth(call));
+        break;
       case "updatePassword":
         handleUpdatePassword(call, result, getAuth(call));
         break;
@@ -559,16 +562,12 @@
   }
 
   private void handleUpdatePhoneNumber(MethodCall call, Result result, FirebaseAuth firebaseAuth) {
-    Map<String, String> arguments = call.arguments();
-    String verificationId = arguments.get("verificationId");
-    String smsCode = arguments.get("smsCode");
-
-    PhoneAuthCredential phoneAuthCredential =
-        PhoneAuthProvider.getCredential(verificationId, smsCode);
+    @SuppressWarnings("unchecked")
+    AuthCredential credential = getCredential((Map<String, Object>) call.arguments);
 
     firebaseAuth
         .getCurrentUser()
-        .updatePhoneNumber(phoneAuthCredential)
+        .updatePhoneNumber((PhoneAuthCredential) credential)
         .addOnCompleteListener(new TaskVoidCompleteListener(result));
   }
 
diff --git a/packages/firebase_auth/pubspec.yaml b/packages/firebase_auth/pubspec.yaml
index b6b9352..7ce7bf9 100755
--- a/packages/firebase_auth/pubspec.yaml
+++ b/packages/firebase_auth/pubspec.yaml
@@ -4,7 +4,7 @@
   like Google, Facebook and Twitter.
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/firebase_auth
-version: "0.11.1+4"
+version: "0.11.1+5"
 
 flutter:
   plugin: