Add a SLE12 SP1 bug fix and refresh patches.

- bsc#945962: SLES12 SP1 Beta3 - Pass-through NIC device via virsh
not available to VM.
56945e13-libxl-AttachDeviceConfig-hostdev.patch

- libxl: set driver log level to the log_level specified in
libvirtd.conf
ba25c214-libxl-log-level.patch
bsc#945796

- CVE-2015-5247 - denial of service through root-squash NFS storage
bsc#945645
3468542f-virFileUnlink.patch
8b1d84e6-refreshVol-failure.patch
e0025d29-storage-mode-check.patch