port 0xed based port-IO delay

configname: CONFIG_IO_DELAY_0XED

IO delay type
└─>port 0xed based port-IO delay
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Use port 0xed as the IO delay. This frees up port 0x80 which is
often used as a hardware-debug port.