image.bbclass: Add additional bb.debug to help track 12304
We actually caught the ext4 size issue in the wild with the debug
output in the oe_mkext234fs() code, but it did not help. What that
showed was that the get_rootfs_size was returning a default size of
8192, where as the actual rootfs was more like 10572, thus too large
to fit in the created sparse file.
This additional temporary debug code should help us determine where
the failure might be.
More debug for
[YOCTO #12304]
Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
