Translate '0.0.0.0/0' to '0.0.0.0' when allowing IP
access with the ganesha driver since the ganesha back end
cannot handle the former expression and the latter has
the desired effect of allowing access to all IPs.
Closes-bug: #1800627
Change-Id: Ica698b6a70a128522c2c2de76a69e59207fd60ac
(cherry picked from commit a65c2b0974)