tty/serial: altera_uart: use more informative labels in /proc/interrupts

Prior to this patch:

~# cat /proc/interrupts
...
40: 123 0 GIC-0 72 Level altera_uart
41: 9 0 GIC-0 73 Level altera_uart

After this patch:

~# cat /proc/interrupts
...
40: 6 0 GIC-0 72 Level ff200100.fpga-uart0
41: 28 0 GIC-0 73 Level ff200200.fpga-uart1

Signed-off-by: Antony Pavlov <[e-mail]>
Acked-by: Tobias Klauser <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/altera_uart.c

···
 		int ret;
 
 		ret = request_irq(port->irq, altera_uart_interrupt, 0,
-				DRV_NAME, port);
+				dev_name(port->dev), port);
 		if (ret) {
 			pr_err(DRV_NAME ": unable to attach Altera UART %d "
 			       "interrupt vector=%d\n", port->line, port->irq);