virtio_gpio: drop packed attribute

Declaring the struct packed here is mostly harmless,
but gives a bad example for people to copy.
As the struct is packed and aligned manually,
let's just drop the attribute.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

include/uapi/linux/virtio_gpio.h

@@ -37,7 +37,7 @@ struct virtio_gpio_config {
 	__le16 ngpio;
 	__u8 padding[2];
 	__le32 gpio_names_size;
-} __packed;
+};
 
 /* Virtio GPIO Request / Response */
 struct virtio_gpio_request {