default or selected kernelversion does not have config value CONFIG_EARLY_PRINTK_MRST.
Result is shown for kernelversion 6.2.5
Early printk for MRST platform support
modulename: early_printk_mrst.ko
configname: CONFIG_EARLY_PRINTK_MRST
Linux Kernel Configuration
└─>Kernel hacking
└─>Early printk for MRST platform support