CONFIG_CPU_BMIPS3300 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

BMIPS3300

configname: CONFIG_CPU_BMIPS3300

CPU type
└─>BMIPS3300
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Broadcom BMIPS3300 processors.