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The same file is already the part of Linux kernel that's why add it also to u-boot to be able to use it in source code and DT files. Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/1c3bc464536a9bf64a2e8bfe18a938c9cb490620.1657192249.git.michal.simek@amd.com