ivi-shell-user-interface: ignore all but first seat

This client should support binding to multiple seats, but as it does
not, make a quick and dirty fix to ignore all seats beyond the first
one.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Emre Ucan <eucan@de.adit-jv.com>
1 file changed