CONFIG_PROC_THERMAL_MMIO_RAPL is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

CONFIG_PROC_THERMAL_MMIO_RAPL (not configurable)

configname: CONFIG_PROC_THERMAL_MMIO_RAPL

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Thermal sysfs driver
└─>Intel thermal drivers
└─>ACPI INT340X thermal drivers
└─>PROC_THERMAL_MMIO_RAPL
In linux kernel since version 4.14.326 (release Date: 2023-09-23)