Fix some GTS VP8 related failed cases.

BZ: 194934

Keep encode parameters agreement with GTS test cases.
Set minQP as 0;
Set kf_auto as 0;
Set max/min kf dist as 128.
There are the same as GTS test cases setting.
Then failed cases were gone.

Change-Id: Ida8c7d945285cf911eeceb7d22a84254c093a513
Signed-off-by: bolunliu <bolun.liu@intel.com>
diff --git a/videoencoder/VideoEncoderVP8.cpp b/videoencoder/VideoEncoderVP8.cpp
index 486c5ba..1a0871d 100644
--- a/videoencoder/VideoEncoderVP8.cpp
+++ b/videoencoder/VideoEncoderVP8.cpp
@@ -19,10 +19,10 @@
         mVideoParamsVP8.profile = 0;
         mVideoParamsVP8.error_resilient = 0;
         mVideoParamsVP8.num_token_partitions = 4;
-        mVideoParamsVP8.kf_auto = 1;
-        mVideoParamsVP8.kf_min_dist = 0;
-        mVideoParamsVP8.kf_max_dist = 32;
-        mVideoParamsVP8.min_qp = 4;
+        mVideoParamsVP8.kf_auto = 0;
+        mVideoParamsVP8.kf_min_dist = 128;
+        mVideoParamsVP8.kf_max_dist = 128;
+        mVideoParamsVP8.min_qp = 0;
         mVideoParamsVP8.max_qp = 63;
         mVideoParamsVP8.init_qp = 26;
         mVideoParamsVP8.rc_undershoot = 100;