default or selected kernelversion does not have config value CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK.
Result is shown for kernelversion 6.9.9

CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK (not configurable)

configname: CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK

Linux Kernel Configuration
└─>General architecture-dependent options
└─>GCC plugins
└─>GCC_PLUGIN_ARM_SSP_PER_TASK
In linux kernel since version 5 (release Date: 2019-03-03)