LU-6215 o2iblnd: handle new struct ib_cq_init_attr

LU-6215 o2iblnd: handle new struct ib_cq_init_attr

For linux kernel version 4.2 the infiniband layer
created a new structure ib_cq_init_attr to pass to
ib_create_cq(). This patch handles this new case.
See linux commit 8e37210b38fb7d6aa06aebde763316ee955d44c0

Change-Id: I0db25c8bf6a4fb11a120607a45f8f1e546c375d6
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/16118
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: frank zago <fzago@cray.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>