printk: fix kernel-doc name for nbcon_write_context_is_braille

Use the function name in the kerneldoc description.

Fixes: c83e3d2912 ("braille: nbcon: Allow to use a serial console with NBCON API as Braille console")
Signed-off-by: Muhammad Mahdi Amirpour <[email protected]>
Reviewed-by: John Ogness <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Petr Mladek <[email protected]>

kernel/printk/nbcon.c

@@ -2005,7 +2005,8 @@ void nbcon_kdb_release(struct nbcon_write_context *wctxt)
 }
 
 /**
- * nbcon_is_braille - Checks whether the nbcon write context is using Braille console
+ * nbcon_write_context_is_braille - Checks whether the nbcon write context
+ *                                  is using Braille console
  *
  * @wctxt:	checked nbcon write context
  *