increase mb_map tests timeout
increase mb_map tests timeout

Change-Id: I09df50531e321fca8461512203f4e29a9014816a
Reviewed-on: http://review.membase.org/5670
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

t3rm1n4l/ns_server,pavel-blagodov/ns_server,daverigby/ns_server,membase/ns_server,vzasade/ns_server,daverigby/ns_server,ceejatec/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,membase/ns_server,t3rm1n4l/ns_server,membase/ns_server,membase/ns_server,pavel-blagodov/ns_server,nimishzynga/ns_server,mschoch/ns_server,nimishzynga/ns_server,mschoch/ns_server,ceejatec/ns_server,membase/ns_server,vzasade/ns_server,nimishzynga/ns_server,ceejatec/ns_server,pavel-blagodov/ns_server,nimishzynga/ns_server,vzasade/ns_server,daverigby/ns_server,nimishzynga/ns_server,ceejatec/ns_server,t3rm1n4l/ns_server,ceejatec/ns_server,daverigby/ns_server,vzasade/ns_server,mschoch/ns_server,membase/ns_server,mschoch/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,ceejatec/ns_server,daverigby/ns_server