In the python script I didn't use the word TODO because pylint doesn't
like that, but morally it's the same.
I removed the comment about "do we need a subset of compat.sh?" because
it turns out that `ssl-opt.sh` is already exercising all the key
exchanges:
% sed -n 's/.*force_ciphersuite=TLS-\([^ ]*\)-WITH.*/\1/p' tests/ssl-opt.sh | sort -u
DHE-PSK
DHE-RSA
ECDH-ECDSA
ECDHE-ECDSA
ECDHE-PSK
ECDHE-RSA
ECJPAKE
PSK
RSA
RSA-PSK
(the only omission is ECDH-RSA which is not of interest here and does
not actually differ from ECDH-ECDSA). So, we don't need a subset of
compat.sh because we're already getting enough testing from ssl-opt.sh
(not to mention test_suite_ssl).
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>