fix mpsc queue cur enqueue node to atomic exhange #1375

Job	Run time
clang-compile-with-boringssl	12m 4s
clang-compile-with-bazel-all-options	10m 53s
clang-compile-with-bazel	10m 6s
clang-compile-with-cmake	2m 46s
clang-compile-with-cmake-all-options	4m 42s
clang-compile-with-make	2m 54s
clang-compile-with-make-all-options	5m 2s
clang-unittest	16m 4s
gcc-compile-with-bazel	10m 23s
gcc-compile-with-bazel-all-options	11m 34s
gcc-compile-with-boringssl	12m 34s
gcc-compile-with-cmake	3m 14s
gcc-compile-with-cmake-all-options	5m 28s
gcc-compile-with-make	3m 1s
gcc-compile-with-make-all-options	4m 57s
	1h 55m 42s

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