gpsd: fix udev rules file

systemd-udevd[41]: unknown key 'SYSFS{idVendor}' in /etc/udev/rules.d/60-gpsd.rules:43
systemd-udevd[41]: invalid rule '/etc/udev/rules.d/60-gpsd.rules:43'

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>