Reset the max kf dist as 32.

BZ: 183561

Reset the max kf dist as 32. It should be the multiple of 4.
It can fix wrong ref frame issue for Sand Drop.

Change-Id: Ie61a778436eb850d848bcf4ad3a880ac08870cb8
Signed-off-by: bolunliu <bolun.liu@intel.com>
diff --git a/videoencoder/VideoEncoderVP8.cpp b/videoencoder/VideoEncoderVP8.cpp
index 3db3435..168b60e 100644
--- a/videoencoder/VideoEncoderVP8.cpp
+++ b/videoencoder/VideoEncoderVP8.cpp
@@ -21,7 +21,7 @@
         mVideoParamsVP8.num_token_partitions = 4;
         mVideoParamsVP8.kf_auto = 1;
         mVideoParamsVP8.kf_min_dist = 0;
-        mVideoParamsVP8.kf_max_dist = 30;
+        mVideoParamsVP8.kf_max_dist = 32;
         mVideoParamsVP8.min_qp = 4;
         mVideoParamsVP8.max_qp = 63;
         mVideoParamsVP8.init_qp = 26;