classes/rootfs_rpm: handle recommends in query functions
Implement list_package_recommends() for rpm, and filter out the
"suggests" (RPM's equivalent of recommends) in list_package_depends().
Respectively, these changes fix buildhistory handling of recommends for
RPM (so that they are included in the image graphs) and also prevents
failures during do_rootfs with buildhistory enabled if a recommend is
unsatisfied.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
