Add p9_proc_gettracearray procedure

Generic procedure to dump a trace array. The API is similar to the P8 procedure,
but the procedure takes trace _bus_ IDs as opposed to trace _array_ IDs and uses
these to check the trace array's primary trace MUXes prior to dumping. There is
also a flag to skip this check if you want to dump a specific trace array no
matter which bus is muxed into it.

The FAPI2 target supplied must match the trace array; most will just need a
TARGET_TYPE_PROC_CHIP target, but some are targeted at OBUS, MCBIST, EX or CORE
granularity. There's an inline function proc_gettracearray_target_type() that
will help determine the target type.

Change-Id: Ied7602b05a7441e4d2610b96ea77026d7a40b3c7
Original-Change-Id: I093cd03bc90fbe93ed8fff3d18cd0676359fa5d1
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/22847
Dev-Ready: Joachim Fenkes <fenkes@de.ibm.com>
Tested-by: Jenkins Server
Tested-by: PPE CI
Tested-by: Hostboot CI
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-by: Jenny Huynh <jhuynh@us.ibm.com>
Reviewed-by: Thi N. Tran <thi@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/55426
CI-Ready: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml

@@ -29,14 +29,32 @@
 -->
 
 <attributes>
+  <!-- ********************************************************************* -->
+  <attribute>
+    <id>ATTR_CHIP_EC_FEATURE_CORE_TRACE_SCOMABLE</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>
+      Returns true if the core trace arrays are dumpable via SCOM.
+      Nimbus EC 0x20 or greater
+    </description>
+    <chipEcFeature>
+      <chip>
+	<name>ENUM_ATTR_NAME_NIMBUS</name>
+	<ec>
+	  <value>0x20</value>
+	  <test>GREATER_THAN_OR_EQUAL</test>
+	</ec>
+      </chip>
+    </chipEcFeature>
+  </attribute>
   <!-- ********************************************************************* -->
   <attribute>
     <id>ATTR_CHIP_EC_FEATURE_TEST1</id>
     <targetType>TARGET_TYPE_PROC_CHIP, TARGET_TYPE_MEMBUF_CHIP</targetType>
     <description>
       Returns if a chip contains the TEST1 feature. True if either:
       Centaur EC 10
-      Venice EC greater than 30
+      Cumulus EC greater than 30
     </description>
     <chipEcFeature>
       <chip>