drm/virtio: module_param_named() requires linux/moduleparam.h

Fixes: 3e93bc2a ("drm/virtio: make resource id workaround runtime switchable.")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://patchwork.freedesktop.org/patch/msgid/20190828185516.22b03da8@canb.auug.org.au


Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>