folio_queue: fix documentation

s/folioq_count/folioq_full/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20241001134729.3f65ae78@canb.auug.org.auSigned-off-by: Christian Brauner <brauner@kernel.org>

include/linux/folio_queue.h

@@ -81,7 +81,7 @@ static inline unsigned int folioq_count(struct folio_queue *folioq)
 }
 
 /**
- * folioq_count: Query if a folio queue segment is full
+ * folioq_full: Query if a folio queue segment is full
  * @folioq: The segment to query
  *
  * Query if a folio queue segment is fully occupied.  Note that this does not