LU-9447 o2iblnd: Check for 2 arg ib_alloc_pd

LU-9447 o2iblnd: Check for 2 arg ib_alloc_pd

A flags argument was added to ib_alloc_pd() in Linux 4.9 commit
ed082d36a7b2c27d1cda55fdfb28af18040c4a89. The fix for LU-9026, Lustre
commit e4297ef38561f1e788ba73ca0c8078a09dc8c303, accounted for this
change by checking for the removal of ib_get_dma_mr() (which happened
separately). However, SLES 12 SP3 beta 1 adopted the extra argument
to ib_alloc_pd(), but retains the ib_get_dma_mr() function. As a
result, we need an explicit check for the two argument version of
ib_alloc_pd().

Signed-off-by: Chris Horn <hornc@cray.com>
Change-Id: Iecde347e9f18149cac63e243082a2686de260ba7
Reviewed-on: https://review.whamcloud.com/26934
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Tested-by: Jenkins
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>