Give tethering TETHER_PRIVILEGED permission

This fix the crash when perform "Reset Wi-Fi,mobile & Bluetooth"

Bug: 146900199
Test: -build, flash, boot
      -atest TetheringTests
      -atest CtsTetheringTest
      -manual perform "Reset Wi-Fi,mobile & Bluetooth"

Change-Id: I036409358ed15a797bdb751bb66513425350d066
diff --git a/Tethering/AndroidManifest.xml b/Tethering/AndroidManifest.xml
index 87a8c3f..e99c2c5 100644
--- a/Tethering/AndroidManifest.xml
+++ b/Tethering/AndroidManifest.xml
@@ -33,6 +33,7 @@
     <uses-permission android:name="android.permission.MANAGE_USB" />
     <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
     <uses-permission android:name="android.permission.READ_NETWORK_USAGE_HISTORY" />
+    <uses-permission android:name="android.permission.TETHER_PRIVILEGED" />
     <uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
     <uses-permission android:name="android.permission.WRITE_SETTINGS" />