Opensm - client reregistration bit handling

Opensm - client reregistration bit handling

Currently when sending mads with PortInfo Set we set client_rereg to
be one if we are in first_time_master_sweep and relevant capability
mask is on). In other cases - we send in client_reregister bit the
data we have saved. If this data is 1 - then we will keep on sending
it.

This patch assures that we send 0 in the client_reregister bit,
unless we specifically want to send 1.

git-svn-id: svn://openib.tc.cornell.edu/gen1@186 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86