Move VideoEncoderConfig from api/ into video/config

This cl is a preparation for https://webrtc-review.googlesource.com/c/src/+/277002
so that downstream tests can be modified first.

Bug: webrtc:14451
Change-Id: I03b613db695c533bd77ab4bd2f8b35677094443c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/277003
Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38231}
diff --git a/video/config/BUILD.gn b/video/config/BUILD.gn
index 7902c0b..be76be9 100644
--- a/video/config/BUILD.gn
+++ b/video/config/BUILD.gn
@@ -66,3 +66,8 @@
     }
   }
 }
+
+rtc_library("encoder_config") {
+  sources = [ "video_encoder_config.h" ]
+  deps = [ "../../api/video_codecs:video_codecs_api" ]
+}
diff --git a/video/config/video_encoder_config.h b/video/config/video_encoder_config.h
new file mode 100644
index 0000000..d33dec1
--- /dev/null
+++ b/video/config/video_encoder_config.h
@@ -0,0 +1,16 @@
+/*
+ *  Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VIDEO_CONFIG_VIDEO_ENCODER_CONFIG_H_
+#define VIDEO_CONFIG_VIDEO_ENCODER_CONFIG_H_
+
+#include "api/video_codecs/video_encoder_config.h"
+
+#endif  // VIDEO_CONFIG_VIDEO_ENCODER_CONFIG_H_