CA-364194: Allow creation of statefiles to time out

Currently enabling HA can stall because the GFS2 calls when adding the
HA statefile might stall indefinitely when there are connection issues

Now xapi waits a minute before failing, signalling the user that
something has gone awry

Signed-off-by: Pau Ruiz Safont <pau.safont@citrix.com>

ocaml/xapi/static_vdis.ml

@@ -36,7 +36,7 @@ let permanent_vdi_attach ~__context ~vdi ~reason =
  )
  ) ;
  ignore
- (Helpers.call_script !Xapi_globs.static_vdis
+ (Helpers.call_script ~timeout:60.0 !Xapi_globs.static_vdis
  ["add"; Db.VDI.get_uuid ~__context ~self:vdi; reason]
  ) ;
  (* VDI will be attached on next boot; attach it now too *)