CONFIG_ARCH_ORION is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_ORION.
Result is shown for kernelversion 5.19-rc1

Marvell Orion

configname: CONFIG_ARCH_ORION

ARM system type
└─>Marvell Orion
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Support for Marvell Orion System on Chip family.