CONFIG_PPC_82xx is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

82xx-based boards (PQ II)

configname: CONFIG_PPC_82xx

Linux Kernel Configuration
└─>82xx-based boards (PQ II)
In linux kernel since version 2.6.15 (release Date: 2006-01-02)  
depends
CONFIG_6xx