kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_AR600x_WB31_XXX.
Result is shown for kernelversion 3.1.9

WB31-xxx

configname: CONFIG_AR600x_WB31_XXX

AR6003 Board Data Configuration
└─> WB31-xxx

Board Data file for a standard WB31 (BT/WiFi) reference design (File: bdata.WB31.bin)