New internal permission to protect apps against rogue Nfc message.

    <permission android:name="android.permission.LOCAL_MAC_ADDRESS"

                android:protectionLevel="signatureOrSystem" />

    <!-- Allows the Nfc stack to dispatch Nfc messages to applications. Applications

        can use this permission to ensure incoming Nfc messages are from the Nfc stack

        and not simulated by another application.

        @hide -->

    <permission android:name="android.permission.DISPATCH_NFC_MESSAGE"

                android:protectionLevel="signatureOrSystem" />

    <!-- The system process is explicitly the only one allowed to launch the

         confirmation UI for full backup/restore -->

    <uses-permission android:name="android.permission.CONFIRM_FULL_BACKUP"/>