target/arm: Convert Neon 2-reg-misc fp-compare-with-zero insns to decodetree

target/arm: Convert Neon 2-reg-misc fp-compare-with-zero insns to decodetree

Convert the fp-compare-with-zero insns in the Neon 2-reg-misc group to
decodetree.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200616170844.13318-17-peter.maydell@linaro.org