CONFIG_BVME6000 is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k

BVME4000 and BVME6000 support

configname: CONFIG_BVME6000

Linux/68k Kernel Configuration
└─>Platform dependent setup
└─>BVME4000 and BVME6000 support
In linux kernel since version 2.6.12  
Say Y to include support for VME boards from BVM Ltd. This will
build a kernel which can run on BVME4000 and BVME6000 boards. If
you select this option you will have to select the appropriate
drivers for SCSI, Ethernet and serial ports later on.

depends
CONFIG_VME

is selected by
CONFIG_BVME6000_SCSI