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

CONFIG_SOC_TYPE_XWAY (not configurable)

configname: CONFIG_SOC_TYPE_XWAY

Linux Kernel Configuration
└─>SOC_TYPE_XWAY
In linux kernel since version 3 (release Date: 2011-07-21)  

depends
CONFIG_LANTIQ