camera: allow setting video-size before recording starts

Needed for some samsung cameras.

Change-Id: Ia0f5716d5e6815d249040b08313482a103a36863
camera: Add ZSL support for Samsung/Qualcomm cameras

 * Preview management for Samsung/Qualcomm cameras

Change-Id: Ib36bd21c9a76b45bced3eee2f25acc35b5d82b30
this got missed in the ZSL camera support

Change-Id: I61da245bc2f9bf5e9d8670e2a07460c9e320865b