netlink-conntrack: Fix partial match of entries with SCTP. #624

Job	Run time
linux rpm fedora	6m 11s
osx clang --disable-ssl	4m 10s
linux deb no dpdk	8m 55s
dpdk gcc	7s
linux gcc --disable-ssl	3m 38s
linux clang --disable-ssl	3m 5s
linux gcc c99	3m 20s
linux clang c99	3m 40s
linux gcc test	12m 20s
linux clang test asan	25m 25s
linux clang test ubsan	12m 46s
linux gcc test --enable-shared	15m 39s
linux clang test --enable-shared	15m 43s
linux gcc test dpdk	11m 24s
linux clang test dpdk	10m 47s
linux gcc test -ljemalloc	13m 45s
linux clang test -ljemalloc	14m 18s
linux gcc --enable-afxdp	3m 19s
linux clang --enable-afxdp	3m 25s
linux gcc dpdk --enable-shared	4m 51s
linux clang dpdk --enable-shared	4m 49s
linux gcc dpdk-shared	4m 32s
linux clang dpdk-shared	3m 32s
linux gcc dpdk-shared --enable-shared	4m 54s
linux clang dpdk-shared --enable-shared	4m 3s
linux gcc m32 --disable-ssl	3m 44s
	3h 22m 22s

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