At this stage we simply do not care about the delayed work value,
because active scan is not yet supported, so we can blindly queue
another work once a beacon has been sent.

It fixes a smatch warning:
    mac802154_beacon_worker() warn: always true condition
    '(local->beacon_interval >= 0) => (0-u32max >= 0)'

Fixes: 3accf476 ("mac802154: Handle basic beaconing")
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230214135035.1202471-6-miquel.raynal@bootlin.comSigned-off-by: NStefan Schmidt <stefan@datenfreihafen.org>