No, it is not. The slope was steeper than what is in the pic you are referencing, it is facing the wrong way and the building is larger than the Berghof.
It's possibly a pic of Martin Bormann's house at the Obersalzburg. The steepness of the slope and features of the building correspond to the photo on p.19 of After The Battle #9.
Yes, it is a photo of the Bormann Haus. I have circled the relevant features; Bormann's house, and the three trees lined in a row.