sudo: update to 1.8.10p3.
polkit: add systemd build option (on by default).
libgphoto2: cross build support: split udev rules into its own subpkg.
net-snmp: disable perl/python bindings.
sane: cross build support: split udev rules into its own subpkg.
colord: update to 1.1.7; enable sane support; add systemd build option (soname bumps).
Revbump packages that depend on colord due to soname bumps.
colord: fix -devel rdeps: needs libudev.
simple-scan: update to 3.12.1.
simple-scan: cross build support.