Match on CipherSuiteID directly
Match on CipherSuiteID directly

Due to the switch to pointer receivers we'd have to initiate a struct to
then call ID() on it to get the CipherSuiteID. Instead we use the
CipherSuiteID directly. It's more obvious what we're matching now and
less error prone to changes in the future. We leave the ID() method in
place on CipherSuite since it's exported.

pion/dtls