Fix installation of mkisofs on SUSE Linux Enterprise 12

It's provided by the cdrkit-cdrtools-compat package.

Change-Id: I4b57e03391d47bed777016ab1d735b8ba4aa5ceb

Author: Adam Spiers

files/rpms-suse/n-cpu

@@ -1,8 +1,9 @@
+cdrkit-cdrtools-compat # dist:sle12
 cryptsetup
 dosfstools
 libosinfo
 lvm2
-mkisofs
+mkisofs # not:sle12
 open-iscsi
 sg3_utils
 # Stuff for diablo volumes

files/rpms-suse/nova

@@ -1,3 +1,4 @@
+cdrkit-cdrtools-compat # dist:sle12
 conntrack-tools
 curl
 dnsmasq
@@ -11,7 +12,8 @@ kvm # NOPRIME
 libvirt # NOPRIME
 libvirt-python # NOPRIME
 mariadb # NOPRIME
-mkisofs # required for config_drive
+# mkisofs is required for config_drive
+mkisofs # not:sle12
 parted
 polkit
 # qemu as fallback if kvm cannot be used