perf tests trace+probe_vfs_getname.sh: Accept quotes surrounding the filename

perf tests trace+probe_vfs_getname.sh: Accept quotes surrounding the filename

With augmented_raw_syscalls transformed into a BPF skel made the output have a "
around the filenames, which is not what the old perf probe vfs_getname
method of obtaining filenames did, so accept the augmented way, with the
quotes.

At this point probably removing all the logic for the vfs_getname method
is in order, will do it at some point.

For now lets accept with/without quotes and make that test pass.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>