FROMGIT: drm/virtio: implement blob resources: resource create blob ioctl

Implement resource create blob as specified.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-18-gurchetansingh@chromium.org


Co-developed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
(cherry picked from commit 897b4d1acaf56314652c6a8e75d9f86b5e45638d
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

 master)

BUG=b:171715474
TEST=compile

Change-Id: I41921c5f83bec67ce8131c75c6a74e6514c4ba1e
Signed-off-by: Guenter Roeck <groeck@chromium.org>
(cherry picked from commit bf0af29f080eaddd1d05baf662cc743066de9735)