ITS: improve video stabilization logging for debug

files affected:
  test_preview_stabilization.py
  test_video_stabilization.py
  utils/video_processing_utils.py

Other changes:
  pylint corrections
  match class and test name
  remove QCIF from test_preview_stabilization.py

bug: 234490567
Change-Id: Ib28cad54455137cd46b883a63e10b60e625c8d0e
3 files changed