default or selected kernelversion does not have config value CONFIG_BLK_DEV_IDE_CELLEB.
Result is shown for kernelversion 5.10.188

Toshiba's Cell Reference Set IDE support

configname: CONFIG_BLK_DEV_IDE_CELLEB

Linux Kernel Configuration
└─>Device Drivers
└─>ATA/ATAPI/MFM/RLL support
└─>Toshiba's Cell Reference Set IDE support
In linux kernel since version 2.6.21.1 (release Date: 2007-04-27)  
This driver provides support for the built-in IDE controller on
Toshiba Cell Reference Board.
If unsure, say Y.