Merge "Increase fastboot timeout to 30 seconds"

class FastBootDriver {

  public:

    static constexpr int RESP_TIMEOUT = 10;  // 10 seconds

    static constexpr int RESP_TIMEOUT = 30;  // 30 seconds

    static constexpr uint32_t MAX_DOWNLOAD_SIZE = std::numeric_limits<uint32_t>::max();

    static constexpr size_t TRANSPORT_CHUNK_SIZE = 1024;