CONFIG_PRPMC800 is not available for thedefaultarchitecture x86.
Result is shown for architecture ppc

Motorola-PrPMC800

modulename: open_pic.ko

and/or

prpmc800.ko

configname: CONFIG_PRPMC800

Machine Type
└─>Motorola-PrPMC800
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
arch/ppc/syslib/