Install both ramdisks in the ipa downloader

- Make the different ipa-ramdisk packages installable side by side
- Clean the ipa-downloader Dockerfile from what seems to be unneeded
- Get both images in
- Use zstd instead of xz for better speed
- Check sums before redoing certs integration
- Add value to metal3 chart to select between architectures
- Get the two ESP available as well

Signed-off-by: Nicolas Belouin <nicolas.belouin@suse.com>

ironic-image/Dockerfile

@@ -7,8 +7,9 @@ ARG SLE_VERSION
 FROM registry.suse.com/bci/bci-micro:$SLE_VERSION AS micro
 
 FROM registry.suse.com/bci/bci-base:$SLE_VERSION AS base
+#Might be needed: dosfstools mtools
 
-RUN zypper -n in --no-recommends shim-x86_64 shim-aarch64 grub2-x86_64-efi grub2-arm64-efi dosfstools mtools
+RUN zypper -n in --no-recommends shim-x86_64 shim-aarch64 grub2-x86_64-efi grub2-arm64-efi
 
 WORKDIR /tmp
 COPY prepare-efi.sh /bin/