[LTP] [PATCH 1/6] network: rename dcctp dir to tcp_cc

[Petr Vorel]

> This directory will include other TCP congestion control
> related tests, not only dctcp algorithm.

> Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Acked-by: Petr Vorel <pvorel@suse.cz>