Fix timestamp parsing issue for full scan results.

        Log.d(TAG, "Batch record : " + Arrays.toString(batchRecord));

        Set<ScanResult> results = new HashSet<ScanResult>(numRecords);

        int position = 0;

        long now = SystemClock.elapsedRealtimeNanos();

        while (position < batchRecord.length) {

            byte[] address = extractBytes(batchRecord, position, 6);

            // TODO: remove temp hack.

            // Skip tx power level.

            position++;

            int rssi = batchRecord[position++];

            long timestampNanos = parseTimestampNanos(extractBytes(batchRecord, position, 2));

            long timestampNanos = now - parseTimestampNanos(extractBytes(batchRecord, position, 2));

            position += 2;

            // Combine advertise packet and scan response packet.