CONFIG_PPC_FSL_BOOK3E is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_PPC_FSL_BOOK3E (not configurable)

modulename: fsl_booke_mmu.ko

and/or

cpu_setup_fsl_booke.ko

configname: CONFIG_PPC_FSL_BOOK3E

Linux Kernel Configuration
└─>Processor support
└─>PPC_FSL_BOOK3E
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
source code:
arch/powerpc/mm/fsl_booke_mmu.c