Camera: Limit supported preview sizes

The ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES can provide sizes as large
as jpeg sizes, which could cause potential issues when trying to do
full size still capture and full size preview. This is not supported
by many devices due to hardware limitation. This change limits the
preview (as well video) size to no more than 1080p.

Bug: 10625115
Change-Id: I9467ab843553ec06e8249b4a17c0ecf4c6d6f04e