include: move xsha1.h to os/
This header is never exported and belongs to OS layer, thus no need to have it in include/ directory, where all the public ones are - better off under os/.
Signed-off-by: Enrico Weigelt, metux IT consult info@metux.net
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This header is never exported and belongs to OS layer, thus no need to have it in include/ directory, where all the public ones are - better off under os/.
Signed-off-by: Enrico Weigelt, metux IT consult info@metux.net