LU-6215 o2iblnd: rdma_create_id() takes extra parameter

4.4 kernel added network namespace parameter to rdma_create_id().
This patch handles the API change.

Linux-commit: fa20105e09e97e81aadf02f722c31195e4a75c84

Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au>
Change-Id: I3f3792e70e91ac3b3d9fefdd58cc9e7e4d1c25c6
Reviewed-on: http://review.whamcloud.com/18759
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>