[pungi-fedora] PR #1173: Update multilib to allow memtest86+ ia32

jsteffan commented on the pull-request: `Update multilib to allow memtest86+ ia32` that you are following: `` There are ia32 BIOS/UEFI bootloaders out in the wild and I'd like to see parity with capabilities vs architecture. With this change, it will go away when there is no longer a %{ix86} builder available. This seems like a reasonable exception to provide the full capabilities of memtest86+. `` To reply, visit the link below or just reply to this email https://pagure.io/pungi-fedora/pull-request/1173