wic: Add 512 Byte alignment to --offset
Allows the --offset argument to use the "s" or "S" suffix to specify
that it is reporting the number of 512 byte sectors.
This is required for some SoCs where the mask ROM looks for an item at a
sector that isn't aligned to a 1KB boundary.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
938595d1dc4abaf5f7f3a7900add3f0492b805d0)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
