target/xtensa: Set FloatInfZeroNaNRule explicitly

Set the FloatInfZeroNaNRule explicitly for the xtensa target,
so we can remove the ifdef from pickNaNMulAdd().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-11-peter.maydell@linaro.org
2 files changed