Cherish: Set a text length on the carrier label

Up til now this has been gone unnoticed. Without a text limit the user
could very easily blow up the statusbar to the point that is not usable.

Change-Id: I2813af9e12c6d29e020669e0626faec8422fedbe

src/com/cherish/settings/fragments/CustomCarrierLabel.java

@@ -23,6 +23,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.provider.Settings;
+import android.text.InputFilter;
 import android.text.Spannable;
 import android.text.TextUtils;
 import android.widget.EditText;
@@ -69,7 +70,9 @@ public class CustomCarrierLabel extends SettingsPreferenceFragment
             alert.setMessage(R.string.custom_carrier_label_explain);
             // Set an EditText view to get user input
             final EditText input = new EditText(getActivity());
+            int maxLength = 25;
             input.setText(TextUtils.isEmpty(mCustomCarrierLabelText) ? "" : mCustomCarrierLabelText);
+            input.setFilters(new InputFilter[] {new InputFilter.LengthFilter(maxLength)});
             input.setSelection(input.getText().length());
             alert.setView(input);
             alert.setPositiveButton(getString(android.R.string.ok),