Don't define WOLFSSL_HAVE_KYBER unless configured. Only compile code in ext_kyber.c when WOLFSSL_HAVE_KYBER defined. Include config.h and settings in ext_kyber.c. This allowed HAVE_VISIBILITY to be defined. Cleanup kyber.h.
Don't define WOLFSSL_HAVE_KYBER unless configured. Only compile code in ext_kyber.c when WOLFSSL_HAVE_KYBER defined. Include config.h and settings in ext_kyber.c. This allowed HAVE_VISIBILITY to be defined. Cleanup kyber.h.