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Hans de Goede committed da70b4d1411
tinyprintf: Add vprintf implementation vprintf is used by panic() which is used in various SPL paths on some boards. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Simon Glass <sjg@chromium.org>