dccp: Integrate the TFRC library with DCCP

This patch integrates the TFRC library, which is a dependency of CCID-3 (and
CCID-4), with the new use of CCIDs in the DCCP module.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/dccp/Makefile
Simple merge

diff --cc net/dccp/ccid.c
Simple merge

diff --cc net/dccp/ccids/Kconfig
Simple merge

diff --cc net/dccp/ccids/Makefile
Simple merge

diff --cc net/dccp/ccids/lib/Makefile
Simple merge

diff --cc net/dccp/ccids/lib/loss_interval.c
Simple merge

diff --cc net/dccp/ccids/lib/packet_history.c
Simple merge

diff --cc net/dccp/ccids/lib/tfrc.c
Simple merge

diff --cc net/dccp/ccids/lib/tfrc.h
Simple merge

diff --cc net/dccp/ccids/lib/tfrc_equation.c
Simple merge

diff --cc net/dccp/feat.c
Simple merge

diff --cc net/dccp/input.c
Simple merge