codec2: handle CCodec sends empty buffer at EOS

After ag/4278466, CCodec changes to send EOS work with no input buffer rather
than a dummy buffer. Handle this case for C2VDAComponent.

Bug: 73261432
Test: CtsMediaTestCases
android.media.cts.MediaCodecTest
android.media.cts.DecoderTest#testDecodeWithEOSOnLastBuffer
android.media.cts.MediaPlayerTest#testLocalVideo_MP4_H264_480x360_1000kbps_25fps_AAC_Stereo_128kbps_44110Hz

Change-Id: Ib43f39804fc63520c4320f0a4a76822c8b15e8f0
1 file changed