PM: sleep: Fix bit masking operation

The mask operation link->flags | DL_FLAG_PM_RUNTIME is always true which
is incorrect. The mask operation should be using the bit-wise &
operator. Fix this.

Fixes: bca84a7 ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20250319114324.791829-1-colin.i.king@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: ColinIanKing

drivers/base/power/main.c

@@ -1836,7 +1836,7 @@ static bool device_prepare_smart_suspend(struct device *dev)
 	idx = device_links_read_lock();
 
 	list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) {
-		if (!(link->flags | DL_FLAG_PM_RUNTIME))
+		if (!(link->flags & DL_FLAG_PM_RUNTIME))
 			continue;
 
 		if (!dev_pm_smart_suspend(link->supplier) &&