Make VM notifications permanent for Bell, Telus, Rogers.

Bug: 22610402
Change-Id: Ib5b2ae463801f4955e9ea884ffa1cee39e8e2f7b
diff --git a/assets/carrier_config_302220.xml b/assets/carrier_config_302220.xml
index 45dd0d0..d247feb 100644
--- a/assets/carrier_config_302220.xml
+++ b/assets/carrier_config_302220.xml
@@ -1,11 +1,12 @@
 <?xml version='1.0' encoding='utf-8' standalone='yes' ?>
 <carrier_config_list>
-<carrier_config>
-<int name="smsToMmsTextThreshold" value="5" />
-<int name="recipientLimit" value="10" />
-<int name="maxImageHeight" value="1944" />
-<int name="maxSubjectLength" value="80" />
-<int name="maxMessageSize" value="1048576" />
-<int name="maxImageWidth" value="2592" />
-</carrier_config>
+    <carrier_config>
+        <int name="smsToMmsTextThreshold" value="5" />
+        <int name="recipientLimit" value="10" />
+        <int name="maxImageHeight" value="1944" />
+        <int name="maxSubjectLength" value="80" />
+        <int name="maxMessageSize" value="1048576" />
+        <int name="maxImageWidth" value="2592" />
+        <boolean name="voicemail_notification_persistent_bool" value="true" />
+    </carrier_config>
 </carrier_config_list>