Add malloc_dump_to_file() and malloc_log_to_file() functions to write
heap dumps and malloc traffic logs to host files. This is useful for
debugging memory leaks in sandbox by allowing comparison of before/after
heap states with external tools like diff.
These functions are only available in sandbox builds since they use
host-filesystem access.
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
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