media: uapi: Expose VP8 probability lengths as defines

These values will be used by various drivers implementing the VP8
stateless API.

This had been suggested by Ezequiel Garcia for the Cedrus VP8 driver.
Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

include/media/vp8-ctrls.h

@@ -53,11 +53,13 @@ struct v4l2_vp8_quantization_header {
 	__u16 padding;
 };
 
+#define V4L2_VP8_COEFF_PROB_CNT 11
+#define V4L2_VP8_MV_PROB_CNT 19
 struct v4l2_vp8_entropy_header {
-	__u8 coeff_probs[4][8][3][11];
+	__u8 coeff_probs[4][8][3][V4L2_VP8_COEFF_PROB_CNT];
 	__u8 y_mode_probs[4];
 	__u8 uv_mode_probs[3];
-	__u8 mv_probs[2][19];
+	__u8 mv_probs[2][V4L2_VP8_MV_PROB_CNT];
 	__u8 padding[3];
 };