Make SCP broadcast protected

As we are removing the Privileged receiver in CellBroadcastReceiver, we
should ensure that the SCP broadcast (in addition to the SMS_CB
broadcast, which is already protected) can only be sent by system.

Bug: 148482594
Test: manually verify that the broadcast can only be sent from system
Change-Id: I94feaecda633507604321ed23f39026a7e77b3df
(cherry picked from commit 3dc60c256be4eb703c4b93ed83eb33687547ab2a)
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 18687d0..9ee5bab 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -49,6 +49,7 @@
     <protected-broadcast android:name="android.provider.Telephony.WAP_PUSH_RECEIVED" />
     <protected-broadcast android:name="android.provider.Telephony.SMS_CB_RECEIVED" />
     <protected-broadcast android:name="android.provider.action.SMS_EMERGENCY_CB_RECEIVED" />
+    <protected-broadcast android:name="android.provider.Telephony.SMS_SERVICE_CATEGORY_PROGRAM_DATA_RECEIVED" />
     <protected-broadcast android:name="android.provider.Telephony.SECRET_CODE" />
     <protected-broadcast android:name= "com.android.internal.stk.command" />
     <protected-broadcast android:name= "com.android.internal.stk.session_end" />