uefi: Don't unconditionally enable Werror for the EFI binary
uefi: Don't unconditionally enable Werror for the EFI binary

hughsie/fwupd,fwupd/fwupd,vathpela/fwupd,fwupd/fwupd,vathpela/fwupd,fwupd/fwupd,vathpela/fwupd,hughsie/fwupd,vathpela/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd