NdkMediaCodec: Wrong check in error callback handler

NdkMediaCodec checks for wrong item in case of CB_ERROR callback. It
is checking for action instead of actionCode, because of which error
is not getting propagated. This leads to hang in application using
async NdkMediaCodec APIs.

Test: encoderTest --gtest_repeat=20 -P /sdcard/res/
Test: decoderTest --gtest_repeat=20 -P /sdcard/res/

Bug: 141458223

Change-Id: I9da8a361d1925b73f341f36e55f7426888155fc6