CONFIG_CRYPTO_CRC32C_SPARC64 is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT or sparc

CRC32c

modulename: crc32c-sparc64.ko

configname: CONFIG_CRYPTO_CRC32C_SPARC64

Linux Kernel Configuration
└─>Accelerated Cryptographic Algorithms for CPU (sparc64)
└─>CRC32c
In linux kernel since version 3.1 (release Date: 2011-10-24)  
CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)

Architecture: sparc64

source code: