target/arm: Convert LDXP, STXP, CASP, CAS to decodetree

Convert the load/store exclusive pair (LDXP, STXP, LDAXP, STLXP),
compare-and-swap pair (CASP, CASPA, CASPAL, CASPL), and compare-and
swap (CAS, CASA, CASAL, CASL) instructions to decodetree.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230602155223.2040685-10-peter.maydell@linaro.org
2 files changed