Fix incorrect package in PackageChangeReceiver

This class is  meant to be internal but accidentally had the wrong
package name set. Rectify that to avoid it appearing in documentation.

Test: diff docs with internal filter applied, verify PCR is gone.
Change-Id: I498d460a524c878aafdf4f1a4497fcc51979c343
diff --git a/telephony/common/com/android/internal/telephony/PackageChangeReceiver.java b/telephony/common/com/android/internal/telephony/PackageChangeReceiver.java
index 0b47547..e9b7d95 100644
--- a/telephony/common/com/android/internal/telephony/PackageChangeReceiver.java
+++ b/telephony/common/com/android/internal/telephony/PackageChangeReceiver.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package android.telephony;
+package com.android.internal.telephony;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
diff --git a/telephony/common/com/android/internal/telephony/SmsApplication.java b/telephony/common/com/android/internal/telephony/SmsApplication.java
index b8b60da..16614c8 100644
--- a/telephony/common/com/android/internal/telephony/SmsApplication.java
+++ b/telephony/common/com/android/internal/telephony/SmsApplication.java
@@ -40,7 +40,6 @@
 import android.os.UserHandle;
 import android.provider.Telephony;
 import android.provider.Telephony.Sms.Intents;
-import android.telephony.PackageChangeReceiver;
 import android.telephony.TelephonyManager;
 import android.util.Log;