target/arm: Add isar_feature_aa64_rme

Add the missing field for ID_AA64PFR0, and the predicate.
Disable it if EL3 is forced off by the board or command-line.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 files changed