Added back a missing multiplication by the number of merged devices

for "ext2sim" when using "ext2sim merge" (either aggressive or
conservative merge).  Same change as made to magic-8.1.

ext2sim/ext2sim.c

@@ -1012,6 +1012,7 @@ simdevVisit(dev, hierName, scale, trans)
 
     /* Computation of length and width has been moved from efVisitDevs */
     EFGetLengthAndWidth(dev, &l, &w);
+    if (esMergeDevsA || esMergeDevsC) w *= getCurDevMult();
 
     /* If only two terminals, connect the source to the drain */
     gate = &dev->dev_terms[0];