CCodec: make config consistent before/after flush

If the CSD is processed before flush, make sure client and component
are in sync.

Bug: 141097367
Bug: 142542964
Bug: 149537770
Test: atest CtsMediaTestCases -- --module-arg CtsMediaTestCases:size:small
Change-Id: Ia51591770a4fdac1c1334a94fa8d6b2776da1a81
Merged-In: Ia51591770a4fdac1c1334a94fa8d6b2776da1a81
diff --git a/media/codec2/sfplugin/CCodec.h b/media/codec2/sfplugin/CCodec.h
index b0b3c4f..a580d1d 100644
--- a/media/codec2/sfplugin/CCodec.h
+++ b/media/codec2/sfplugin/CCodec.h
@@ -17,6 +17,7 @@
 #ifndef C_CODEC_H_
 #define C_CODEC_H_
 
+#include <atomic>
 #include <chrono>
 #include <list>
 #include <memory>
@@ -175,6 +176,7 @@
     typedef CCodecConfig Config;
     Mutexed<Config> mConfig;
     Mutexed<std::list<std::unique_ptr<C2Work>>> mWorkDoneQueue;
+    std::atomic_flag mSentConfigAfterResume;
 
     friend class CCodecCallbackImpl;