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

CONFIG_PSERIES_PLPKS_SED (not configurable)

modulename: plpks_sed_ops.ko

configname: CONFIG_PSERIES_PLPKS_SED

Linux Kernel Configuration
└─>PSERIES_PLPKS_SED
In linux kernel since version 4.14.330 (release Date: 2023-11-20)  
source code:
arch/powerpc/platforms/pseries/plpks_sed_ops.c