vconn: Count vconn_sent regardless of log level. #1995

Job	Run time
dpdk gcc	5s
linux deb no dpdk	7m 13s
osx clang --disable-ssl	3m 43s
linux gcc --disable-ssl	2m 13s
linux clang --disable-ssl	2m 31s
linux gcc c99	2m 43s
linux clang c99	2m 5s
linux gcc test	7m 7s
linux clang test asan	13m 29s
linux clang test ubsan	10m 10s
linux gcc test --enable-shared	10m 39s
linux clang test --enable-shared	10m 28s
linux gcc test dpdk	7m 51s
linux clang test dpdk	7m 52s
linux gcc test -ljemalloc	7m 41s
linux clang test -ljemalloc	7m 51s
linux gcc --enable-afxdp	2m 2s
linux clang --enable-afxdp	2m 3s
linux gcc dpdk --enable-shared	3m 27s
linux clang dpdk --enable-shared	3m 52s
linux gcc dpdk-shared	2m 21s
linux clang dpdk-shared	2m 36s
linux gcc dpdk-shared --enable-shared	3m 2s
linux clang dpdk-shared --enable-shared	3m 23s
linux gcc m32 --disable-ssl	2m 18s
	2h 8m 45s

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