CONFIG_SERIAL167 is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k

CD2401 support for MVME166/7 serial ports

modulename: serial167.ko

configname: CONFIG_SERIAL167

Linux/68k Kernel Configuration
└─>Character devices
└─>CD2401 support for MVME166/7 serial ports
In linux kernel since version 2.6.12  
This is the driver for the serial ports on the Motorola MVME166,
167, and 172 boards. Everyone using one of these boards should say
Y here.

source code:
depends
CONFIG_MVME16x