gupnp-tools: Upgrade 0.8.1 -> 0.8.10

* Icon theme is no longer a build requirement.
* RRecommend Adwaita as icon theme
* Depend on GTK+3
* license checksum change is not an actual license change

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>