FFDH 3b: add driver testing (no TLS 1.3)

[mpg]

Following #6010, we want to test builds where PSA_WANT_ALG_FFDH is enabled and provided only by a driver - that is where DHM_C is disabled.

This will be done by adding a new all.sh component similar to component_test_psa_crypto_config_accel_ecdh,

In that component, the TLS 1.2 key exchanges based on FFDH (that is DHE_PSK and DHE_RSA) will need to be disabled. Also, for now TLS 1.3 will remain disabled (to make this task independent from #5979).

Note: 6010 introduced support for key_agreement, but we need to add support for import, export, and generate key, in tests/src/drivers/test_driver_key_agreement.c.

*Depends on: #6010