locking/rtmutex: Use the correct rtmutex debugging config option

It's CONFIG_DEBUG_RT_MUTEXES not CONFIG_DEBUG_RT_MUTEX.

Fixes: f7efc47 ("locking/rtmutex: Inline chainwalk depth check")
Signed-off-by: Zhen Lei <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Will Deacon <[email protected]>
Acked-by: Boqun Feng <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]

Author: Zhen Lei

kernel/locking/rtmutex.c

@@ -343,7 +343,7 @@ static __always_inline bool
 rt_mutex_cond_detect_deadlock(struct rt_mutex_waiter *waiter,
 			      enum rtmutex_chainwalk chwalk)
 {
-	if (IS_ENABLED(CONFIG_DEBUG_RT_MUTEX))
+	if (IS_ENABLED(CONFIG_DEBUG_RT_MUTEXES))
 		return waiter != NULL;
 	return chwalk == RT_MUTEX_FULL_CHAINWALK;
 }