CONFIG_UNICORE32 is not available for thedefaultarchitecture x86.
Result is shown for architecture unicore32

CONFIG_UNICORE32 (not configurable)

modulename: setup-bus.ko

configname: CONFIG_UNICORE32

Linux Kernel Configuration
└─>UNICORE32
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
designs licensed by PKUnity Ltd.
Please see web page at <http://www.pkunity.com/>.

source code:
selects
CONFIG_HAVE_MEMBLOCK
CONFIG_HAVE_GENERIC_DMA_COHERENT
CONFIG_HAVE_GENERIC_HARDIRQS
CONFIG_HAVE_DMA_ATTRS
CONFIG_HAVE_KERNEL_GZIP
CONFIG_HAVE_KERNEL_BZIP2
CONFIG_GENERIC_ATOMIC64
CONFIG_HAVE_KERNEL_LZO
CONFIG_HAVE_KERNEL_LZMA
CONFIG_GENERIC_FIND_FIRST_BIT
CONFIG_GENERIC_IRQ_PROBE
CONFIG_GENERIC_IRQ_SHOW
CONFIG_ARCH_WANT_FRAME_POINTERS
CONFIG_GENERIC_IOMAP

is selected by
CONFIG_FB_PUV3_UNIGFX