encaps: Support backward compatibility for tunnel chassis id change. #206

Job	Run time
dpdk gcc	1m 27s
osx clang --disable-ssl	3m 28s
linux rpm fedora	7m 4s
Prepare container	2m 0s
linux gcc --disable-ssl	2m 17s
linux clang --disable-ssl	2m 14s
linux gcc test -300	8m 55s
linux gcc test 301-600	5m 56s
linux gcc test 601- unstable	5m 52s
linux clang test sanitizers -300	11m 30s
linux clang test sanitizers 301-600	8m 25s
linux clang test sanitizers 601- unstable	9m 34s
linux gcc test -ljemalloc -300	9m 9s
linux gcc test -ljemalloc 301-600	6m 14s
linux gcc test -ljemalloc 601- unstable	5m 54s
linux gcc system-test-dpdk dpdk -100	13m 14s
linux gcc system-test-dpdk dpdk 101- unstable	12m 46s
linux gcc system-test-userspace -100	11m 43s
linux gcc system-test-userspace 101- unstable	11m 42s
linux gcc system-test -100	14m 42s
linux gcc system-test 101- unstable	12m 51s
linux clang system-test sanitizers -100	16m 27s
linux clang system-test sanitizers 101- unstable	14m 23s
linux x86 gcc --disable-ssl	2m 7s
	3h 19m 54s

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