Merge \\"Ignore serial number checks when emulating FBE.\\" into nyc-mr1-dev am: 12f6687b

     *             number is mismatched.

     */

    public static void enforceSerialNumber(File file, int serialNumber) throws IOException {

        if (StorageManager.isFileEncryptedEmulatedOnly()) {

            // When we're emulating FBE, the directory may have been chmod

            // 000'ed, meaning we can't read the serial number to enforce it;

            // instead of destroying the user, just log a warning.

            Slog.w(LOG_TAG, "Device is emulating FBE; assuming current serial number is valid");

            return;

        }

        final int foundSerial = getSerialNumber(file);

        Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial);