Use WOF in core unit checkstop analysis

We have observed in the field that core unit checkstop attentions may
be cleared in the FIR when a system checkstop attention is present.
Fortunately we can rely on the attention to be present in the associated
WOF register, which is what we use for recoverable attentions from the
EQ_CORE_FIR.

Change-Id: I356243e2248078646007db1e3873155244291c9f
Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
diff --git a/xml/p10/node_eq_core_fir.xml b/xml/p10/node_eq_core_fir.xml
index c8b0de5..0248ab3 100644
--- a/xml/p10/node_eq_core_fir.xml
+++ b/xml/p10/node_eq_core_fir.xml
@@ -1111,9 +1111,12 @@
         </expr>
     </rule>
     <rule attn_type="UCS" node_inst="0:31">
-        <!-- FIR & ~MASK & ACT0 & ACT1 -->
+        <!-- (FIR | WOF) & ~MASK & ACT0 & ACT1 -->
         <expr type="and">
-            <expr type="reg" value1="EQ_CORE_FIR"/>
+            <expr type="or">
+                <expr type="reg" value1="EQ_CORE_FIR"/>
+                <expr type="reg" value1="EQ_CORE_FIR_WOF"/>
+            </expr>
             <expr type="not">
                 <expr type="reg" value1="EQ_CORE_FIR_MASK"/>
             </expr>