scst: Annotate poll masks passed to exit tracing

TRACE_EXIT_HRES converts its argument to unsigned long for logging. Passing
an __poll_t directly triggers Sparse's restricted-type warning in both
scst_event_poll() and dev_user_poll().

Explicitly remove the bitwise restriction with __force at those two trace
calls. Keep the typed mask for event operations and the return value,
without weakening the shared trace macro for other callers.

scst/src/dev_handlers/scst_user_main.c

@@ -2484,7 +2484,7 @@ out_unlock:
 	spin_unlock_irq(&dev->udev_cmd_threads.cmd_list_lock);
 
 out:
-	TRACE_EXIT_HRES(res);
+	TRACE_EXIT_HRES((__force unsigned int)res);
 	return res;
 }
 

scst/src/scst_event.c

@@ -1040,7 +1040,7 @@ static __poll_t scst_event_poll(struct file *file, poll_table *wait)
 out_unlock:
 	mutex_unlock(&scst_event_mutex);
 
-	TRACE_EXIT_HRES(res);
+	TRACE_EXIT_HRES((__force unsigned int)res);
 	return res;
 }