regular.mk: test refind with regular-icewm.iso

The current refind support implementation doesn't boot
with either USB Flash or CD-ROM for me (due to the different
actual volumes, FAT vs El Torito, accordingly).

And when it does, a host with Secure Boot present and not
disabled yet would turn the unsigned kernel down unlike ELILO
(due to rEFInd using "natural" calls to boot it).

Both issues are reported upstream; in the meanwhile let's
migrate a single test image but build the rest with elilo.

conf.d/regular.mk

@@ -4,8 +4,8 @@ ifeq (distro,$(IMAGE_CLASS))
 # TODO: use/plymouth/live when luks+plymouth is done, see also #28255
 distro/.regular-desktop: distro/.base +live +wireless use/live/ru \
 	use/live/install use/live/repo use/x11/3d-free use/systemd \
-	use/firmware/wireless use/efi/signed use/luks +vmguest use/memtest \
-	use/branding use/syslinux/ui/gfxboot
+	use/firmware/wireless use/efi/signed use/luks \
+	+vmguest use/memtest use/branding use/syslinux/ui/gfxboot
 	@$(call add,LIVE_PACKAGES,openssh strace alterator-standalone)
 	@$(call add,LIVE_PACKAGES,cpufreq-simple)
 	@$(call add,LIVE_PACKAGES,livecd-online-repo apt-repo)
@@ -22,7 +22,7 @@ distro/.regular-desktop: distro/.base +live +wireless use/live/ru \
 
 distro/.regular-gtk: distro/.regular-desktop use/x11/gdm2.20; @:
 
-distro/regular-icewm: distro/.regular-gtk +icewm; @:
+distro/regular-icewm: distro/.regular-gtk +icewm use/efi/refind; @:
 distro/regular-xfce: distro/.regular-gtk use/x11/xfce; @:
 distro/regular-lxde: distro/.regular-gtk use/x11/lxde; @: