perf cacheline: Move cacheline related routines to separate files

To disentangle util/sort.h a bit more.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-6kbf2cauas06rbqp15pyter5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/Build

@@ -1,6 +1,7 @@
 perf-y += annotate.o
 perf-y += block-range.o
 perf-y += build-id.o
+perf-y += cacheline.o
 perf-y += config.o
 perf-y += ctype.o
 perf-y += db-export.o