CONFIG_CRYPTO_DEV_OCTEONTX2_CPT is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

Marvell OcteonTX2 CPT driver

modulename: rvu_cptpf.ko

configname: CONFIG_CRYPTO_DEV_OCTEONTX2_CPT

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Marvell OcteonTX2 CPT driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This driver allows you to utilize the Marvell Cryptographic
Accelerator Unit(CPT) found in OcteonTX2 series of processors.

source code:
drivers/crypto/marvell/octeontx2/