perf tools: Move srcline definitions to separate header

Out of util.h into a new file, srcline.h

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-ludnlm4djqcdjziekzr4s3u9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browsers/hists.c

@@ -19,6 +19,7 @@
 #include "../ui.h"
 #include "map.h"
 #include "annotate.h"
+#include "srcline.h"
 
 #include "sane_ctype.h"
 

tools/perf/ui/stdio/hist.c

@@ -4,6 +4,7 @@
 #include "../../util/hist.h"
 #include "../../util/sort.h"
 #include "../../util/evsel.h"
+#include "../../util/srcline.h"
 #include "../../util/sane_ctype.h"
 
 static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)