ts-hosts-allocate-Executive: Finish a couple of transactions

ts-hosts-allocate-Executive: Finish a couple of transactions

Call $equivflagscheckq->finish() at the end, rather than in the
candidate search loop.  This avoids missing a `next' control path.

Call $resprop_q->finish() at all.

One of these is responsible for this message:

  DBI::db=HASH(0x88e79c4)->disconnect invalidates 1 active statement
  handle (either destroy statement handles or call finish on them
  before disconnecting) at Osstest/Executive.pm line 708, <GEN4> line
  53.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>