[PATCH] 8250_acpi taints kernel

From: Dmitry Torokhov <dtor_core@ameritech.net>

8250_acpi module does not have MODULE_LICENSE specified.  8250_gsc does not
have it either but as I can't compile it I did not touch it.

drivers/serial/8250_acpi.c

@@ -108,3 +108,6 @@ static void __exit acpi_serial_exit(void)
 
 module_init(acpi_serial_init);
 module_exit(acpi_serial_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic 8250/16x50 ACPI serial driver");