Add plymouth-no-longer-modify-conf-to-drop-isopensuse-macro.patch: plymouth will use plymouthd.defaults instead of plymouth.conf and packge plymouthd.defaults in a seperet RPM. this can avoid change SUSE or openSUSE branding section with is_opensuse macro in the config file. means this modification can close the leaps gap (jsc#SLE-11637).