CONFIG_CRYPTO_CHACHA20_NEON is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64

ChaCha20, XChaCha20, and XChaCha12 stream ciphers using NEON instructions

modulename: chacha-neon.ko

configname: CONFIG_CRYPTO_CHACHA20_NEON

Linux Kernel Configuration
└─>ARM64 Accelerated Cryptographic Algorithms
└─>ChaCha20, XChaCha20, and XChaCha12 stream ciphers using NEON instructions
In linux kernel since version 3.10 (release Date: 2013-06-30)