Add dictionary for GEMSubDetId needed by RNTuple

This fixes problems seen in workflow 7.5 and 29634.402 when
using multiple threads.

Author: Dr15Jones

DataFormats/MuonDetId/src/classes.h

@@ -11,3 +11,4 @@
 #include "DataFormats/MuonDetId/interface/DTSectCollId.h"
 #include "DataFormats/MuonDetId/interface/GEMDetId.h"
 #include "DataFormats/MuonDetId/interface/ME0DetId.h"
+#include "DataFormats/MuonDetId/interface/GEMSubDetId.h"

DataFormats/MuonDetId/src/classes_def.xml

@@ -49,6 +49,9 @@
     ]]>
    </ioread>
   </class>
+  <class name="GEMSubDetId" ClassVersion="3">
+    <version ClassVersion="3" checksum="6356029"/>
+  </class>
   <class name="ME0DetId" ClassVersion="11">
    <version ClassVersion="11" checksum="1292662416"/>
    <version ClassVersion="10" checksum="388194174"/>