util/qht: add missing atomic_set(hashes[i])

util/qht: add missing atomic_set(hashes[i])

We forgot to add this one in "a890643958 util/qht: atomically set b->hashes".

Detected with tsan.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230111151628.320011-3-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-28-alex.bennee@linaro.org>