default or selected kernelversion does not have config value CONFIG_CRYPTO_MORUS1280_SSE2.
Result is shown for kernelversion 6.9.9

MORUS-1280 AEAD algorithm (x86_64 SSE2 implementation)

modulename: morus1280-sse2.ko

configname: CONFIG_CRYPTO_MORUS1280_SSE2

Linux Kernel Configuration
└─>Cryptographic API
└─>MORUS-1280 AEAD algorithm (x86_64 SSE2 implementation)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
SSE2 optimizedimplementation of the MORUS-1280 dedicated AEAD
algorithm.

source code:
arch/x86/crypto/