northd/en-advertised-route-sync: Be more consistent in function naming. #3433

Job	Run time
linux rpm fedora	7m 2s
Prepare container	54s
osx clang --disable-ssl	2m 16s
linux gcc --disable-ssl	2m 40s
linux clang --disable-ssl	2m 41s
linux gcc test -300	10m 1s
linux gcc test 301-600	7m 24s
linux gcc test 601- unstable	7m 35s
linux clang test sanitizers -300	13m 18s
linux clang test sanitizers 301-600	10m 17s
linux clang test sanitizers 601- unstable	13m 10s
linux gcc test -ljemalloc -300	10m 18s
linux gcc test -ljemalloc 301-600	7m 33s
linux gcc test -ljemalloc 601- unstable	7m 49s
linux gcc system-test-dpdk dpdk -100	17m 9s
linux gcc system-test-dpdk dpdk 101- unstable	16m 57s
linux gcc system-test-userspace -100	16m 15s
linux gcc system-test-userspace 101- unstable	16m 24s
linux gcc system-test -100	18m 52s
linux gcc system-test 101- unstable	22m 32s
linux clang system-test sanitizers -100	20m 48s
linux clang system-test sanitizers 101- unstable	24m 29s
linux x86 gcc --disable-ssl	2m 39s
	4h 19m 3s

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