Don't consider processor's OMI freq if it is 0 when freq restrictions

We have been told that processors must run at the same OMI frequency.
During bringup we saw that if the first boot was done with one of the
processors guarded out, and that processor was later unguarded. We would
fail the check that ensures these frequencies are the same, because
the proc that was guarded/unguarded would still be 0 where the other
would be set. This change will allow us to ignore processors with
unset frequency so we can boot far enough to set it. Later on the rule
will be enforced as well on subsequent boots.

Change-Id: I23950371f6f65750aacb07b28317ba11a3a4e8ab
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/85832
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: Roland Veloz <rveloz@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Nicholas E Bofferding <bofferdn@us.ibm.com>

src/usr/fapi2/attribute_service.C

@@ -2808,10 +2808,12 @@ errlHndl_t getOmiFreqAndVco(TARGETING::ATTR_FREQ_OMI_MHZ_type & o_omiFreq,
         TARGETING::ATTR_FREQ_OMI_MHZ_type l_omiFreqToCmp = l_procsList[i]->getAttr<TARGETING::ATTR_FREQ_OMI_MHZ>();
         TARGETING::ATTR_OMI_PLL_VCO_type  l_omiVcoToCmp  = l_procsList[i]->getAttr<TARGETING::ATTR_OMI_PLL_VCO>();
 
-        // If we found that this processor's OMI freq / vco values do not match the first processor's values then
+        // If this processors OMI freq is 0 then we have not determined this proc's OMI freq yet so we can ignore it.
+        // Otherwise, if we found that this processor's OMI freq / vco values do not match the first processor's values then
         // return an error
-        if (l_omiFreqToCmp != o_omiFreq ||
-            l_omiVcoToCmp  != o_omiVco )
+        if ((l_omiFreqToCmp != 0) &&
+            (l_omiFreqToCmp != o_omiFreq ||
+            l_omiVcoToCmp  != o_omiVco ))
         {
             FAPI_ERR("platGetMcPllBucket: Detected two processors with difference OMI VCO / FREQ combinations."
                       " Proc 0x%.08X has OMI freq = %d and OMI vco = %d. "