default or selected kernelversion does not have config value CONFIG_BLK_DEV_MPC8xx_IDE.
Result is shown for kernelversion 5.19-rc1

MPC8xx IDE support

modulename: mpc8xx.ko

configname: CONFIG_BLK_DEV_MPC8xx_IDE

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support
└─>MPC8xx IDE support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This option provides support for IDE on Motorola MPC8xx Systems.
Please see 'Type of MPC8xx IDE interface' for details.

If unsure, say N.

source code:
drivers/ide/ppc/mpc8xx.c