TCP RTT - Add tests #209

Job	Run time
check / editor-config	11s
check / clang-checks	1m 40s
build-os-matrix	3s
make-tests (oraclelinux:9) / tests	1m 53s
build (oraclelinux:9) / build	2m 1s
rpm-build (oraclelinux:9) / rpm-build	3m 3s
rpm-install	0s
	8m 51s

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