controller: Publish ovn-active-active-mappings. #4741

Job	Run time
osx clang --disable-ssl	2m 54s
Prepare container	3m 28s
linux rpm fedora	6m 48s
linux gcc --disable-ssl	2m 35s
linux clang --disable-ssl	2m 50s
linux gcc test -300	9m 26s
linux gcc test 301-600	6m 33s
linux gcc test 601- unstable	6m 52s
linux clang test sanitizers -300	13m 33s
linux clang test sanitizers 301-600	9m 13s
linux clang test sanitizers 601- unstable	11m 24s
linux gcc test -ljemalloc -300	9m 57s
linux gcc test -ljemalloc 301-600	6m 30s
linux gcc test -ljemalloc 601- unstable	6m 56s
linux gcc system-test-dpdk dpdk -100	16m 50s
linux gcc system-test-dpdk dpdk 101- unstable	14m 54s
linux gcc system-test-userspace -100	16m 5s
linux gcc system-test-userspace 101- unstable	14m 0s
linux gcc system-test -100	18m 31s
linux gcc system-test 101- unstable	18m 4s
linux clang system-test sanitizers -100	20m 20s
linux clang system-test sanitizers 101- unstable	20m 4s
linux x86 gcc --disable-ssl	2m 32s
	4h 0m 19s

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