Add support for skipping the beginning of a file with the rawcopy
plugin.
(From OE-Core rev: 89db37c85ac0d0035dbeb9643d7802ca28681e76)
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>