Add data channel option to the readme #8

Job	Run time
mips-32, Shared, OpenSSL, Threadpool On	5m 51s
mips-32, Shared, OpenSSL, Threadpool Off	5m 52s
mips-32, Shared, MbedTLS, Threadpool On	3m 34s
mips-32, Shared, MbedTLS, Threadpool Off	3m 42s
mips-32, Static, OpenSSL, Threadpool On	6m 18s
mips-32, Static, OpenSSL, Threadpool Off	6m 1s
mips-32, Static, MbedTLS, Threadpool On	3m 14s
mips-32, Static, MbedTLS, Threadpool Off	3m 22s
arm-32, Shared, OpenSSL, Threadpool On	5m 59s
arm-32, Shared, OpenSSL, Threadpool Off	5m 47s
arm-32, Shared, MbedTLS, Threadpool On	3m 40s
arm-32, Shared, MbedTLS, Threadpool Off	3m 28s
arm-32, Static, OpenSSL, Threadpool On	7m 36s
arm-32, Static, OpenSSL, Threadpool Off	5m 49s
arm-32, Static, MbedTLS, Threadpool On	3m 13s
arm-32, Static, MbedTLS, Threadpool Off	3m 3s
arm-64, Shared, OpenSSL, Threadpool On	5m 51s
arm-64, Shared, OpenSSL, Threadpool Off	6m 46s
arm-64, Shared, MbedTLS, Threadpool On	3m 28s
arm-64, Shared, MbedTLS, Threadpool Off	3m 30s
arm-64, Static, OpenSSL, Threadpool On	5m 47s
arm-64, Static, OpenSSL, Threadpool Off	6m 35s
arm-64, Static, MbedTLS, Threadpool On	3m 8s
arm-64, Static, MbedTLS, Threadpool Off	3m 4s
aarch-64, Shared, OpenSSL, Threadpool On	6m 16s
aarch-64, Shared, OpenSSL, Threadpool Off	6m 24s
aarch-64, Shared, MbedTLS, Threadpool On	3m 33s
aarch-64, Shared, MbedTLS, Threadpool Off	3m 45s
aarch-64, Static, OpenSSL, Threadpool On	6m 9s
aarch-64, Static, OpenSSL, Threadpool Off	5m 51s
aarch-64, Static, MbedTLS, Threadpool On	3m 8s
aarch-64, Static, MbedTLS, Threadpool Off	3m 22s
	2h 33m 6s

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