FAPI Test: Change RSA_sign to EVP_PKEY_sign
FAPI Test: Change RSA_sign to EVP_PKEY_sign

The EVP_PKEY_sign functions are available since OpenSSL 1.0.0.
The RSA_sign function is deprecated in OpenSSL 3.0.0.

This PR should work with OpenSSL 1.0.0 through 3.0.0.

Signed-off-by: Petr Gotthard <8f56ce0e4bc573accd606cd7f5d0a5811375ffb0@centrum.cz>

01org/TPM2.0-TSS,tpm2-software/tpm2-tss,01org/TPM2.0-TSS,01org/tpm2-tss,01org/tpm2-tss,01org/TPM2.0-TSS,01org/tpm2-tss,tpm2-software/tpm2-tss,tpm2-software/tpm2-tss,01org/TPM2.0-TSS