Liboil is a library of simple functions that are optimized for various

CPUs. It is required by various GStreamer plugins.

Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>

Modifications by Thomas Petazzoni:

 - Remove the glib2 dependency, which is only necessary to build a few
   examples. If glib2 is enabled in the configuration, then we still
   depend on it in order to build the examples, but that's just
   pedantic, not so useful.

 - Remove the oil-bugreport program installed to the target by
   install-strip.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>