If h2645data.c were changed in a way that makes it rely on another
object file, all components that need h2645data.o would need to be
updated. And given that the VVC decoder->h2645data.o dependency is
currently hidden in a separate Makefile, it would likely be forgotten.
So move it to the libavcodec/Makefile.
Reviewed-by: Nuo Mi <nuomi2021@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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