An investigation into undocumented variables uncovered a mispelled
instance of PARALLEL_MAKE in image-swab.bbclass.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
OEROOT isn't used outside the init script so stop exporting it into the environment
where it can "corrupt" sstate packages.
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>