CONFIG_CPU_PXA930 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_PXA930 (not configurable)

modulename: pxa930.ko

configname: CONFIG_CPU_PXA930

Linux Kernel Configuration
└─>CPU_PXA930
In linux kernel since version 2.6.27 (release Date: 2008-10-09)  
PXA930 (codename Tavor-P)

source code:
selects
CONFIG_PXA3xx

depends
CONFIG_ARCH_PXA

is depended by
CONFIG_MACH_TAVOREVB