The ornamental design for a dockingstation for an electronic device, as shown and described.
FIG. 1 is a perspective view of a docking station for an electronic device, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a right-side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view thereof, in which an electronic device in broken line that docks with the docking station illustrates an example environment.
The broken lines in the drawings illustrate portions of a docking station for electronic device which form no part of the claimed design. The shaded lines in the figures show contour and not surface ornamentation.