forked from Imagelibrary/rtems
* include/rtems/libio.h: Change rtems_filesystem_read_t and rtems_filesystem_write_t to return ssize_t to match read(2) and write(2) respectively.
* include/rtems/libio.h: Change rtems_filesystem_read_t and rtems_filesystem_write_t to return ssize_t to match read(2) and write(2) respectively.