package/libxkbcommon: bump version to 1.0.1

package/libxkbcommon: bump version to 1.0.1

For details see [1].

- disable enable-xkbregistry (as suggested by documentation [3] and
  to avoid libxml2 dependency)

[1] https://lists.freedesktop.org/archives/wayland-devel/2020-September/041596.html
[2] https://lists.freedesktop.org/archives/wayland-devel/2020-September/041609.html
[3] https://github.com/xkbcommon/libxkbcommon/blob/master/PACKAGING

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>