wic: Update canned-wks for systemd to use UUID everywhere
With systemd, the mounting of the swap partition is handled via systemd
and will mount it, regardless of if PARTUUID is parsed or not. systemd
has a runtime dependency on util-linux-mount so PARTUUID for regular
mount points will be handled correctly. Make all partitions that we add
to the image make use of UUIDs for maximum portability.
Signed-off-by: Tom Rini <trini@konsulko.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
