default or selected kernelversion does not have config value CONFIG_CRYPTO_POLY1305_MIPS.
Result is shown for kernelversion 6.9.9

Hash functions: Poly1305

modulename: poly1305-mips.ko

configname: CONFIG_CRYPTO_POLY1305_MIPS

Linux Kernel Configuration
└─>Cryptographic API
└─>Accelerated Cryptographic Algorithms for CPU (mips)
└─>Hash functions: Poly1305
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Poly1305 authenticator algorithm (RFC7539)

Architecture: mips