msm_fb: display: Fix double entry in clean pipes.

Caused by the double entry of this commit: "e256961d379c264e2fde3665dfd32fe6ce9ce9d9"

Change-Id: I5a1c4ed7b71c8ef2d0ee2e997303df78f37fc7e1
Merge "msm_fb: display: Fix double entry in clean pipes." into next