Refactor PMIC attributes to be at OCMB level

eff_config can now put SPD attributes at OCMB level if the
attribute is defined as such. It will ignore any values for
DIMM 1 and only use those for DIMM 0 (attributes that will
be the same, like PMIC fields, for example)

Minor fix to pmic_status_tool_ut failing UTs due to mismatch
in help screen

git-coreq:hostboot:I5a66f0540ecc65434123c976d83103c99d9ae018
Change-Id: I5a66f0540ecc65434123c976d83103c99d9ae018
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/90584
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: ANDRE A MARIN <aamarin@us.ibm.com>
Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/90830
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>

src/import/generic/memory/lib/utils/shared/mss_generic_consts.H

@@ -193,6 +193,7 @@ enum generic_ffdc_codes
     DDIMM_RAWCARD_DECODE = 0x103a,
     INIT_RANK_INFO = 0x103B,
     BIAS_PMIC_FROM_SPD = 0x103C,
+    PMIC_ENABLE_SPD = 0x103D,
     SET_DRAM_WIDTH = 0x1040,
 
     SET_SI_VREF_DRAM_WR = 0x1041,