amiserial deals only with a single serial, so drop the rs_table array
and NR_PORTS and define a single non-array serial_state for simplicity
instead.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210714091314.8292-10-jslaby@suse.czSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>