Cleaned up spd decoder interface, preparing for common code with Cumulus

Removes dependent target from the base decoder API to match
RDIMM and LRDIMM decoder. This is in prepartion for using a common
generic interface for both Nimbus and Cumulus.

Change-Id: Ia5c59506739e63ebbe2968f6c81d7bc291bb42c0
Original-Change-Id: Ib41da0796d7cc97983bfa059dc7d033a0f1048df
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/35749
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: Brian R. Silver <bsilver@us.ibm.com>
Reviewed-by: STEPHEN GLANCY <sglancy@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: JACOB L. HARVEY <jlharvey@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/37415
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/hwp/memory/lib/spd/spd_factory.C

@@ -404,7 +404,7 @@ static fapi2::ReturnCode master_ranks_per_dimm_setter(const fapi2::Target<TARGET
     uint8_t l_attrs_dimm_ranks_configed[PORTS_PER_MCS][MAX_DIMM_PER_PORT] = {};
 
     // Get & update MCS attribute
-    FAPI_TRY( i_pDecoder->num_package_ranks_per_dimm(i_target, l_decoder_val),
+    FAPI_TRY( i_pDecoder->num_package_ranks_per_dimm(l_decoder_val),
               "%s. Failed num_package_ranks_per_dimm()", mss::c_str(i_target) );
     FAPI_TRY(eff_num_master_ranks_per_dimm(l_mcs, &l_attrs_master_ranks_per_dimm[0][0]),
              "%s. Failed eff_num_master_ranks_per_dimm()", mss::c_str(i_target) );