[U-Boot] SYS_HAVE_*CACHE_MAINTENANCE

Emmanuel,

# Since I haven't subscribed the ML, I can't reply to your post directly.

You haven't enabled those configs on armv8/ARM64 (and other arch's as well). So if your patch is merged "as it is," I'm afraid that it will break some functions/commands on such architectures that already have cache maintenance operations without knowing those new configs.

Thanks, -Takahiro AKASHI