CONFIG_8272 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_8272 (not configurable)

configname: CONFIG_8272

Linux Kernel Configuration
└─>8272
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
The MPC8272 CPM has a different internal dpram setup than other CPM2
devices

selects
CONFIG_8260