Update dependencies in test_suite_rsa.function #10280
Description
When the legacy macros are turned off by default (#10148) the test_new_psa_want_key_pair_symbol all.sh component is failing because of the RSA tests are not running. The problem is that the MBEDTLS_GENPRIME is a global dependency in test_suite_rsa.function. This dependency must only been used in test functions where where the mbedtls_rsa_gen_key is used.