include/hw/core/cpu: Introduce MMUIdxMap

Use a typedef instead of uint16_t directly when
describing sets of mmu indexes.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
3 files changed