serial: 8250_dw: Fix the stub for dw8250_probe_acpi()

This fixes the stub for dw8250_probe_acpi() that is used
when compiling without ACPI enabled. The argument type was
wrong.

Reported-by: kbuild test robot <[e-mail]>
Signed-off-by: Heikki Krogerus <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/8250/8250_dw.c

···
 	return 0;
 }
 #else
-static inline int dw8250_probe_acpi(struct uart_port *p)
+static inline int dw8250_probe_acpi(struct uart_8250_port *up)
 {
 	return -ENODEV;
 }