The ornamental design of a two part door frame cover, as shown and described.
FIG. 1 is a perspective view of a two part door frame cover showing my new design.
FIG. 2 is an end view thereof.
FIG. 3 is a top plan view thereof; and,
FIG. 4 is an end view showing the two part door frame cover, the door frame and a wall section, the door frame and wall section being in broken lines for illustrative purposes only and form no part of the claimed design.