camera: Add an UpdateFBSize() method to the interface
camera: Add an UpdateFBSize() method to the interface

When the underlying FB changes, the camera needs to know about it to
recompute the projection matrix.

Let's provide this generically on all cameras so we don't have to bother
the user to hook into the fb size changes in the scene.

Signed-off-by: Damien Lespiau <64bd3cb94f359c1a3ce68dae5e26b40578526277@gmail.com>

dlespiau/dax,dlespiau/dax