travis: search for patches in meta-ros* instead of recipes-ros
travis: search for patches in meta-ros* instead of recipes-ros

* recipes-ros top-level directory doesn't exist since layer version 3 was implemented

Signed-off-by: Martin Jansa <77d25b640e536c950b8ae8cdd4f0574e3b263d04@lge.com>

bmwcarit/meta-ros,bmwcarit/meta-ros,bmwcarit/meta-ros,bmwcarit/meta-ros