buildiso: try to fix god damn plymouth

plymouth pkg should go in the Packages-Live

lib/util-iso-image.sh

@@ -221,6 +221,7 @@ configure_live_image(){
     configure_mhwd "$1"
     configure_system "$1"
     configure_services "$1"
+    configure_plymouth "$1"
     configure_calamares "$1"
     write_live_session_conf "$1"
     msg "Done configuring [livefs]"

lib/util-iso.sh

@@ -345,7 +345,6 @@ make_image_boot() {
         mkdir -p ${path}
 
         mount_image_live "${path}"
-        configure_plymouth "${path}"
 
 #         if [[ ${gpg_key} ]]; then
 #             gpg --export ${gpg_key} >${work_dir}/gpgkey