p910nd: fix running multiple instances
Compile tested: (ramips, rb760igs, 23.05 snapshot)
Run tested: (ramips, rb760igs, 23.05 snapshot, tests done)
Description:
In case we have multiple device defined in /etc/config/p910nd then init script will try to start multiple instance with same instance name
drop instance name as resolution
tested on 23.05 snapshot with 2 USB printers
Signed-off-by: Peca Nesovanovic <peca.nesovanovic@sattrakt.com>
(cherry picked from commit
152d80ce1326d0b1fee8e324ec8e68dd9f44cf4a)