Fix tilt laser dependency

http://jenkins.ros.org/view/HbinP32/job/ros-hydro-jsk-tilt-laser_binarydeb_precise_i386/48/console

```
CMake Error at /opt/ros/hydro/share/catkin/cmake/catkinConfig.cmake:75 (find_package):
  Could not find a configuration file for package dynamic_reconfigure.

  Set dynamic_reconfigure_DIR to the directory containing a CMake
  configuration file for dynamic_reconfigure.  The file will have one of the
  following names:

    dynamic_reconfigureConfig.cmake
    dynamic_reconfigure-config.cmake

```