fdo#67470 Element Dock: Subset icon missing in Set Operation section

RID_XSUPSETY wasn't just listed, RID_XSUPSETEQY (notice the Q) was.
Adding it adds it to the dock.

Change-Id: I4c621aab74b424aacd5421ed90f35b42ae6e0a14

starmath/source/ElementsDockingWindow.cxx

@@ -81,7 +81,7 @@ const sal_uInt16 SmElementsControl::aSetOperations[] =
     RID_XINY, RID_XNOTINY, RID_XOWNSY,
     0xFFFF,
     RID_XINTERSECTIONY, RID_XUNIONY, RID_XSETMINUSY, RID_XSLASHY,
-    RID_XSUBSETY, RID_XSUBSETEQY, RID_XSUPSETEQY, RID_XNSUBSETY,
+    RID_XSUBSETY, RID_XSUBSETEQY, RID_XSUPSETY, RID_XSUPSETEQY, RID_XNSUBSETY,
     RID_XNSUBSETEQY, RID_XNSUPSETY, RID_XNSUPSETEQY,
     0xFFFF,
     RID_EMPTYSET, RID_ALEPH, RID_SETN, RID_SETZ,