This patch renames the macro to pipe-src-volume-playback.m4 for
consistency with other audio processing plus volume
pipelines. The topologies those use it are modified for the new
file name.
A new macro for testbench usage called pipe-src-playback.m4 is
added. It is plain SRC component pipeline without volume. The
volume component in the pipeline caused difficulties with test.
The script tools/test/topology/tplg-build.sh will use the
pipeline to create test topology for SRC component.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>