target/arm: Convert CBZ, CBNZ to decodetree

Convert the compare-and-branch-immediate insns CBZ and CBNZ
to decodetree.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230512144106.3608981-15-peter.maydell@linaro.org
2 files changed