Added balloon device to x86_64 config
@@ -1745,7 +1745,7 @@ CONFIG_VIRTIO=y
#
# Virtio drivers
#
-# CONFIG_VIRTIO_BALLOON is not set
+CONFIG_VIRTIO_BALLOON=y
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
