The Doxygen annotation we have in this library, and which the Doxyfile
generates is actually for the shared libosmo-sigtran, and not for the
legacy libosmo-sccp. Let's correct that mistake.
Change-Id: Id591695f9ac9eba53259558c657df834c331e5fa
Make sure doxygen generates library documentation by default (can be
disabled at compile time).
Change-Id: I2bf7438bcdde19dc88b9bc14c8ad9c8f49099f8a
Related: OS#2572