libcamera: camera_sensor: getFormat(): Use span

The function takes a const std::vector reference, but it does
not actually need an `std::vector`. So use a `libcamera::Span`
instead to avoid forcing the caller to construct a vector.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

include/libcamera/internal/camera_sensor.h

@@ -54,7 +54,7 @@ public:
 	virtual Size resolution() const = 0;
 
 	virtual V4L2SubdeviceFormat
-	getFormat(const std::vector<unsigned int> &mbusCodes,
+	getFormat(Span<const unsigned int> mbusCodes,
 		  const Size &size, const Size maxSize = Size()) const = 0;
 	virtual int setFormat(V4L2SubdeviceFormat *format,
 			      Transform transform = Transform::Identity) = 0;