cmos.layout: power_on_after_fail

[Iru Cai]

Hi,

After I set CONFIG_USE_OPTION_TABLE, my laptop will power on when I plug in
the AC adapter. Then I find disabling `power_on_after_fail' will prevent my
laptop from booting when AC is plugged in. So I wonder why this setting is
called `power_on_after_fail' instead of `power on AC attach' as with the
vendor BIOS?