erlang-p1-stun: bump to version 0.9.0

Signed-off-by: Frank Hunleth <fhunleth@troodon-software.com>
[Thomas:
 - do only the version bump, not the package rename, as suggested by
   Romain Naour
 - erlang-p1-stun continues to depend on erlang-p1-tls, not
   erlang-fast_tls.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>