package/mesa3d: bump version to 10.5.1

Dropped several dependencies because the "distribution tarball has been renamed
and now contains all the generated sources."
http://lists.freedesktop.org/archives/mesa-announce/2015-March/000145.html



Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>