crypto/qat: separate sym-specific from generic qp setup

crypto/qat: separate sym-specific from generic qp setup

Extracted all sym-specific code from qp setup fns, leaving
generic qat_qp_setup fn and helper fns. Created a new
meta-data struct qat_qp_config to hold all the data needed
to create a qp, filled this out in the sym-specific code
and passed to the generic qp_setup fn.
No need now for rx and tx queue_create fns, one generic
queue_create fn replaces these.
Included the service name (e.g. "sym") in the qp memzone
and cookie pool names.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>