wrap128.c: Fix Doxygen comments
wrap128.c: Fix Doxygen comments

Reviewed-by: Stephen Henson <9ce5770b3bb4b2a1d59be2d97e34379cd192299f@openssl.org>
Reviewed-by: Emilia Käsper <6521fc25e7624eef7c3a0d89b71de7e612d27d37@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl