disp: msm: Handle dim for udfps

* Apparently, los fod impl is better than udfps cuz it
  has onShow/HideFodView hook, which allows us to toggle
  dimlayer seamlessly.

  Since udfps only partially supports the former one,
  we'd better kill dim in kernel. This is kinda a hack
  but it works well, bringing perfect fod experience
  back to us.

Co-authored-by: Art_Chen <Chenxy0201@qq.com>
Signed-off-by: alk3pInjection <webmaster@raspii.tech>
Change-Id: I80bfd508dacac5db89f4fff0283529c256fb30ce