Use correct bitrate adjustment for Exynos VP9 HW encoder.

webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java

Index: webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java
diff --git a/webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java b/webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java
index b726860e8ec7f6337e5b2bbb55b574328c310863..562ba5467b3e422bf0917f0328fb4790eb156b03 100644
--- a/webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java
+++ b/webrtc/sdk/android/api/org/webrtc/MediaCodecVideoEncoder.java
@@ -128,9 +128,9 @@ public class MediaCodecVideoEncoder {
 
   // List of supported HW VP9 encoders.
   private static final MediaCodecProperties qcomVp9HwProperties = new MediaCodecProperties(
-      "OMX.qcom.", Build.VERSION_CODES.M, BitrateAdjustmentType.NO_ADJUSTMENT);
+      "OMX.qcom.", Build.VERSION_CODES.N, BitrateAdjustmentType.NO_ADJUSTMENT);
   private static final MediaCodecProperties exynosVp9HwProperties = new MediaCodecProperties(
-      "OMX.Exynos.", Build.VERSION_CODES.M, BitrateAdjustmentType.NO_ADJUSTMENT);
+      "OMX.Exynos.", Build.VERSION_CODES.N, BitrateAdjustmentType.FRAMERATE_ADJUSTMENT);
   private static final MediaCodecProperties[] vp9HwList =
       new MediaCodecProperties[] {qcomVp9HwProperties, exynosVp9HwProperties};