Fix false positive from revdep-rebuild for scilab-5.4.1

The scilab-bin binary links against some Java libraries that are not
present in the regular path, hence resulting in revdep-rebuild reporting
them as missing and triggering a rebuild. However these are false
positive since the scilab script sets the right path before invoking
scilab-bin.

In particular, libverify.so is part of the JRE and has to be masked.