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2014-01-08Add crc8 routineSimon Glass
Add an implementation of the CRC8 algorithm. This is required by the TPM emulation, but is probably useful to U-Boot in general. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>