CONFIG_CPU_BMIPS4350 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
BMIPS4350
configname: CONFIG_CPU_BMIPS4350
CPU type
└─>BMIPS4350
In linux kernel since version 2.6.37 (release Date: 2011-01-04)
Broadcom BMIPS4350 ("VIPER") processors.