Fix signature descriptions for chiplet FIRs

Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
Change-Id: Ia997666829269597ee87aa0685499badc86b83ba
diff --git a/xml/p10/node_cfir_n1_ucs.xml b/xml/p10/node_cfir_n1_ucs.xml
index 4a57ccf..51b877e 100644
--- a/xml/p10/node_cfir_n1_ucs.xml
+++ b/xml/p10/node_cfir_n1_ucs.xml
@@ -15,7 +15,7 @@
             <expr type="int" value1="0x0FFFFFFFFFFFFFFF"/>
         </expr>
     </rule>
-    <bit child_node="N1_LOCAL_FIR" node_inst="0" pos="4">Local FIR</bit>
-    <bit child_node="NMMU_CQ_FIR" node_inst="1" pos="5">PBI CQ FIR Register</bit>
-    <bit child_node="NMMU_FIR" node_inst="1" pos="6">NMMU FIR1 Register</bit>
+    <bit child_node="N1_LOCAL_FIR" node_inst="0" pos="4">Attention from N1_LOCAL_FIR</bit>
+    <bit child_node="NMMU_CQ_FIR" node_inst="1" pos="5">Attention from NMMU_CQ_FIR 1</bit>
+    <bit child_node="NMMU_FIR" node_inst="1" pos="6">Attention from NMMU_FIR 1</bit>
 </attn_node>