package/fmc: bump version to lf-6.12.3-1.0.0
Concretely, no change. But prevents people from going to Github and
checking whether the package is up to date.
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
[Julien: reword commit one liner title]
Signed-off-by: Julien Olivain <ju.o@free.fr>