perf test: Add pipe output testing for annotate

Parameterize the basic testing to generate directly a perf.data file
or to generate/use one from pipe input or output.  To simplify the
refactor move some of the head/grep logic around. Use "-q" with grep
to make the test output cleaner.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250311211635.541090-1-irogers@google.com


Signed-off-by: Namhyung Kim <namhyung@kernel.org>