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

CRC32c CRC algorithm (SPARC64)

modulename: crc32c-sparc64.ko

configname: CONFIG_CRYPTO_CRC32C_SPARC64

Linux Kernel Configuration
└─>Cryptographic API
└─>CRC32c CRC algorithm (SPARC64)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
CRC32c CRC algorithm implemented using sparc64 crypto instructions,
when available.

source code:
arch/sparc/crypto/