LU-7578 gnilnd: Return correct error on GNI_RC_ERROR_NOMEM

LU-7578 gnilnd: Return correct error on GNI_RC_ERROR_NOMEM

gni_mem_register() can now return GNI_RC_ERROR_NOMEM.
The upper layers need GNI_RC_ERROR_RESOURCE returned so that the
registration will retry.
In kgnilnd_mem_register, convert GNI_RC_ERROR_NOMEM to
GNI_RC_ERROR_RESOURCE.

Signed-off-by: Chris Horn <hornc@cray.com>
Change-Id: I117acbe7ed24447bb2cf6d36b7f4814eea05ac2d
Reviewed-on: http://review.whamcloud.com/17666
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>