[nrf fromlist] drivers: clock_control_nrf2: Add missing cancelation of request

This is a follow-up to commit fe0e2db.

If `nrf_clock_control_request_sync()` ends up with a timeout, before
returning it must cancel the request that was not fulfilled on time.
Otherwise, the request may actually finish succesfully a bit later,
but the caller will not be aware that the clock needs to be released
(since the call resulted in an error).

Upstream PR #: 82994

Signed-off-by: Andrzej Głąbek <[email protected]>

Author: anangl

drivers/clock_control/clock_control_nrf2_common.c

@@ -198,6 +198,7 @@ int nrf_clock_control_request_sync(const struct device *dev,
 
 	err = k_sem_take(&req.sem, timeout);
 	if (err < 0) {
+		nrf_clock_control_cancel_or_release(dev, spec, &req.cli);
 		return err;
 	}