CONFIG_ARCH_VERSATILE_PB is not available for the selected architecture x86.
Result is shown for architecture arm

Support Versatile/PB platform

modulename: versatile_pb.ko

configname: CONFIG_ARCH_VERSATILE_PB

Linux Kernel Configuration
└─>Versatile platform type
└─>Support Versatile/PB platform
In linux kernel since version 2.6.12 )
Include support for the ARM(R) Versatile/PB platform.
source code:
selects
CONFIG_CPU_ARM926T
CONFIG_MIGHT_HAVE_PCI


is selected by
CONFIG_CPU_ARM926T