The openslam_gmapping commit

https://github.com/ros-perception/openslam_gmapping/commit/07b0c7ef62c0e28296c9618495314af1f43e5693



corrects the license information of that package, and hence, we
adjust the recipe in meta-ros accordingly.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@oss.bmw-carit.de>