Snap: Actually select the highest quality video by default

Prior to this commit Snap assumes that the HAL returns the
list of supported video sizes in descending order of quality and
simply picks the first one from the list as the default quality.

Instead, find the first matching entry of pref_video_quality_entryvalues
that the HAL indicated was supported.

Change-Id: Ifea79e0e16a9015557539e098317536a32b9ff1f
2 files changed