Ask for option `-assume noold_maxminloc`

Ask for option `-assume noold_maxminloc` of Intel compiler. Without
this option, in procedure `set_max_speed`, if the speed values of all
the contours are NaN then the compiler wrongly sets `i` to 1 instead
of 0 at line 142, so `max_speed` is set to NaN instead of
`missing_speed` and the speed contour is wrong.