Fix typo in MTM1M3TS_Events.xml.

Author: rbovill

python/lsst/ts/xml/data/sal_interfaces/MTM1M3TS/MTM1M3TS_Events.xml

@@ -572,7 +572,7 @@
     </item>
   </SALEvent>
   <SALEvent>
-    <Subsystem>MTM1M3</Subsystem>
+    <Subsystem>MTM1M3TS</Subsystem>
     <EFDB_Topic>MTM1M3TS_logevent_glycolPumpStatus</EFDB_Topic>
     <Description>Glycol pump status.</Description>
     <item>