Move KEY_CLEAR_REQUEST attribute from node level to system level

Change-Id: I2de1bcbfb7a8d8adfa47a6e62bdbad3ab2514a55
RTC:210301
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/87081
Reviewed-by: Christopher J Engel <cjengel@us.ibm.com>
Reviewed-by: Ilya Smirnov <ismirno@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Nicholas E Bofferding <bofferdn@us.ibm.com>

src/usr/targeting/common/xmltohb/target_types.xml

@@ -1225,9 +1225,6 @@
       <default>0x00000039</default>
       <id>HWAS_STATE_CHANGED_SUBSCRIPTION_MASK</id>
     </attribute>
-    <attribute>
-      <id>KEY_CLEAR_REQUEST</id>
-    </attribute>
     <attribute>
       <id>KEY_TRANSITION_STATE</id>
     </attribute>
@@ -1923,6 +1920,9 @@
     <attribute>
       <id>ISTEP_PAUSE_ENABLE</id>
     </attribute>
+    <attribute>
+      <id>KEY_CLEAR_REQUEST</id>
+    </attribute>
     <attribute>
       <default>0x0006030000000000</default>
       <id>LPC_BUS_ADDR</id>