Update ZAP and set defaultReportable to true for attributes. (#12074)

This should cause IS_REPORTABLE to be true for attributes unless the
XML has reportable="false".  Still waiting on
project-chip/zap#318 to be fixed to then get
us the behavior we really want.

src/app/zap-templates/zcl/zcl.json

@@ -82,5 +82,6 @@
         "bool": {
             "commandDiscovery": true
         }
-    }
+    },
+    "defaultReportable": true
 }