CONFIG_CPU_ARM920T is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_ARM920T (not configurable)

modulename: proc-arm920.ko

configname: CONFIG_CPU_ARM920T

Linux Kernel Configuration
└─>CPU_ARM920T
In linux kernel since version 2.6.12  
The ARM920T is licensed to be produced by numerous vendors,
and is used in the Cirrus EP93xx and the Samsung S3C2410.

Say Y if you want support for the ARM920T processor.
Otherwise, say N.

source code: