tapctl: add missing dependencies and sync
tapctl: add missing dependencies and sync

the opam file with the one in its source repo.

Signed-off-by: Gabor Igloi <7535f5501fd71876c93d896691e178fd3a11cfbb@citrix.com>

gaborigloi/xs-opam,xapi-project/xs-opam,lindig/xs-opam,mseri/xs-opam,mseri/xs-opam