image_types: add support for modern f2fs flash filesystem
The f2fs filesystem is a newer flash filesystem that is available in
meta-filesystems. This needs a minimum sized blank space to operate
in correctly.
The f2fs has overprovision functionality and when building smaller
filesystems, you actually need more space, therefore under 500M (or so)
double the amount of space needed in order to handle the overprovision
functions in f2fs.
Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
