Rename ACTION_VOICEMAIL_SMS_RECEIVED

Hidden API should not use the android.* namespace.

This CL also make SHOW_VOICEMAIL_NOTIFICATION protected broadcast.

Change-Id: I9e5459632d0e826274fd60a4cfbf73c0ea87d29f
Fixes:35269913
Fixes: 36201216
Test: CtsSignatureTestCases
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index ce8a224..536457b 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -444,6 +444,7 @@
     <protected-broadcast android:name="android.telecom.action.PHONE_ACCOUNT_UNREGISTERED" />
     <protected-broadcast android:name="android.telecom.action.SHOW_MISSED_CALLS_NOTIFICATION" />
     <protected-broadcast android:name="android.telephony.action.CARRIER_CONFIG_CHANGED" />
+    <protected-broadcast android:name="android.telephony.action.SHOW_VOICEMAIL_NOTIFICATION" />
 
     <protected-broadcast android:name="com.android.bluetooth.btservice.action.ALARM_WAKEUP" />
     <protected-broadcast android:name="com.android.server.action.NETWORK_STATS_POLL" />