perf evsel: Remove symbol_conf usage

# perf test -v python
  16: Try 'import perf' in python, checking link problems      :
  --- start ---
  test child forked, pid 672
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  ImportError: /tmp/build/perf/python/perf.so: undefined symbol:
  symbol_conf
  test child finished with -1
  ---- end ----
  Try 'import perf' in python, checking link problems: FAILED!
  #

To fix it just pass a parameter to perf_evsel__fprintf_sym telling if
callchains should be printed.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-comrsr20bsnr8bg0n6rfwv12@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/evsel.h

@@ -403,8 +403,8 @@ int perf_evsel__fprintf_callchain(struct perf_evsel *evsel,
 
 int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample,
 			    struct addr_location *al, int left_alignment,
-			    unsigned int print_opts, unsigned int stack_depth,
-			    FILE *fp);
+			    unsigned int print_opts, bool print_callchain,
+			    unsigned int stack_depth, FILE *fp);
 
 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
 			  char *msg, size_t msgsize);