libcamera: pipeline: Unify naming of configurations in pipeline handlers

Name all instances of CameraConfiguration "config", and all instances of
StreamConfiguration "cfg" accross all pipeline handlers.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/libcamera/camera.cpp

@@ -129,10 +129,10 @@ bool CameraConfiguration::isValid() const
 		return false;
 
 	for (auto const &it : config_) {
-		const StreamConfiguration &conf = it.second;
+		const StreamConfiguration &cfg = it.second;
 
-		if (conf.size.width == 0 || conf.size.height == 0 ||
-		    conf.pixelFormat == 0 || conf.bufferCount == 0)
+		if (cfg.size.width == 0 || cfg.size.height == 0 ||
+		    cfg.pixelFormat == 0 || cfg.bufferCount == 0)
 			return false;
 	}