media: verisilicon: Get bit depth for V4L2_PIX_FMT_NV15_4L4

Let's the driver knows that V4L2_PIX_FMT_NV15_4L4 is a 10bits
pixel format.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/verisilicon/hantro_v4l2.c

@@ -71,6 +71,7 @@ int hantro_get_format_depth(u32 fourcc)
 	switch (fourcc) {
 	case V4L2_PIX_FMT_P010:
 	case V4L2_PIX_FMT_P010_4L4:
+	case V4L2_PIX_FMT_NV15_4L4:
 		return 10;
 	default:
 		return 8;