xenlight: fix device_by_id function
xenlight: fix device_by_id function

It was using the wrong device "kind" in one place.

Signed-off-by: Rob Hoes <8783b3376fb07d39edffc8d7da68a6de3874a7e6@citrix.com>

djs55/xenopsd,koushikcgit/xenopsd,simonjbeaumont/xenopsd,johnelse/xenopsd,koushikcgit/xenopsd,johnelse/xenopsd,simonjbeaumont/xenopsd,thomassa/xenopsd,simonjbeaumont/xenopsd,koushikcgit/xenopsd,djs55/xenopsd,euanh/xenopsd,djs55/xenopsd-previous,thomassa/xenopsd,djs55/xenopsd-previous,cheng--zhang/xenopsd,euanh/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd,cheng--zhang/xenopsd,thomassa/xenopsd,johnelse/xenopsd,euanh/xenopsd,djs55/xenopsd-previous