libcamera: v4l2_device: Rename format() method to getFormat()

Rename format() to getFormat() to reflect the v4l2 API names more
closely.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/include/v4l2_device.h

@@ -86,7 +86,7 @@ public:
 	const char *deviceName() const { return caps_.card(); }
 	const char *busName() const { return caps_.bus_info(); }
 
-	int format(V4L2DeviceFormat *fmt);
+	int getFormat(V4L2DeviceFormat *fmt);
 	int setFormat(V4L2DeviceFormat *fmt);
 
 private: