Add confirm button in PUK2 requested dialog

While changing PIN2, when the SIM gets locked after
maximum retries, "PUK2 requested" dialog appears.
This dialog does not have a confirm option.

Add a confirm button in this dialog.
BUG: 22672673

Change-Id: Ie2e89303373274edebdbdd12bc20b96cec6cd508
diff --git a/src/com/android/phone/settings/fdn/FdnSetting.java b/src/com/android/phone/settings/fdn/FdnSetting.java
index 134d8e6..ac43cce 100644
--- a/src/com/android/phone/settings/fdn/FdnSetting.java
+++ b/src/com/android/phone/settings/fdn/FdnSetting.java
@@ -297,6 +297,15 @@
                                         .setMessage(R.string.puk2_requested)
                                         .setCancelable(true)
                                         .setOnCancelListener(FdnSetting.this)
+                                        .setNeutralButton(android.R.string.ok,
+                                                new DialogInterface.OnClickListener() {
+                                                    @Override
+                                                    public void onClick(DialogInterface dialog,
+                                                            int which) {
+                                                        resetPinChangeStateForPUK2();
+                                                        displayPinChangeDialog(0,true);
+                                                    }
+                                                })
                                         .create();
                                     a.getWindow().addFlags(
                                             WindowManager.LayoutParams.FLAG_DIM_BEHIND);