staging: lustre: lnet: Ensure routing is turned on first time

staging: lustre: lnet: Ensure routing is turned on first time

In lnet_rtrpools_enable(), a mistake was made and routing
was not being turned on when the rtrpools are being allocated
for the first time.

This patch fixes that routine so we remember to turn on
routing after allocating the rtrpools.

Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8501
Reviewed-on: http://review.whamcloud.com/21934
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Amir Shehata <amir.shehata@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>