serial: core: fix kernel-doc for uart_port_unlock_irqrestore()

commit 29bff58 upstream.

Fix the function name to avoid a kernel-doc warning:

include/linux/serial_core.h:666: warning: expecting prototype for uart_port_lock_irqrestore(). Prototype was for uart_port_unlock_irqrestore() instead

Fixes: b0af4bc ("serial: core: Provide port lock wrappers")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: linux-serial@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Link: https://lore.kernel.org/r/20230927044128.4748-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/serial_core.h

@@ -658,7 +658,7 @@ static inline void uart_port_unlock_irq(struct uart_port *up)
 }
 
 /**
- * uart_port_lock_irqrestore - Unlock the UART port, restore interrupts
+ * uart_port_unlock_irqrestore - Unlock the UART port, restore interrupts
  * @up:		Pointer to UART port structure
  * @flags:	The saved interrupt flags for restore
  */