[libvirt] update keycodemapdb submodule for 4.1.0 release
I mistakenly dropped keycodemapdb commit 6b3d716e from our libvirt 4.1.0 builds
only to stumble across the failures in py3 environments that are fixed by that
commit. Should the submodule be updated for the 4.1.0 release?
Regards,
Jim