libcamera: controls: Initialize ControlInfoMap::idmap_

The compiler generated constructor does not initialize the
ControlInfoMap::idmap_ field.

Fix this by explicitly initializing the field in the class
declaration.

Reported-by: Coverity CID=354657
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
1 file changed