CONFIG_PPA8548 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Prodrive PPA8548

modulename: ppa8548.ko

configname: CONFIG_PPA8548

Linux Kernel Configuration
└─>Freescale Book-E Machine Type
└─>Prodrive PPA8548
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option enables support for the Prodrive PPA8548 board.

source code: